Exception -Array to string conversion- after update

Hello everyone,

first of all I am not the the designer of the site wich our problem is all about, nor do I ever had conections to grav befor.
I’m only the admin of the server and I had to update php along with other stuff for security reasons.
I started with updating php from 7.1 to 7.2 afterwards we updatet grav. Everything went fine- no errors. Site is coming up - all fine. Expecting one thing: clicking in the backend on a content element type modular/modular_tiles the following error comes up:

Can anyone give me a hint on how to fix that problem?

Thanks in advanse.
Steffen

No one can give me a hint?

It’s a shame you don’t know the site or Grav very well, makes it hard to get more details. When you click on the other items down in the stack trace on the left side, do you see a call to a “translate” function or similar (that’s what Twig’s |tu is in the highlighted line), with arguments (shown below code) that might be a field label?

This piece of Twig is displaying a form in the Admin plugin. The highlighted line where the exception is thrown is translating the label for the current field. It looks like the label is an array and not a string, causing this exception.

This could be an error in the plugin or in your client’s custom content type blueprint (modular_tiles). They may have declared a field incorrectly in YAML so that it’s been parsed as an array. Can you paste that blueprint file in?

Hallo hughbris,

first of all: Thank you for your support.
you are right, it’s a shame. But I can’t help it. I need to fix the errors.

I’ve checked the 400 lines of error output for translation related things. But I could not find a line line with related to translation.

Wich yaml-file you might need?

Thank you for your efforts.
Steffen

Twig\Error\RuntimeError thrown with message “An exception has been thrown during the rendering of a template (“Array to string conversion”).”

Stacktrace:
#130 Twig\Error\RuntimeError in /var/www/html/cms.pipemaster.de/user/plugins/admin/themes/grav/templates/forms/fields/fieldset/fieldset.html.twig:18
#129 Whoops\Exception\ErrorException in /var/www/html/cms.pipemaster.de/cache/twig/be/bef5367be18a200dd133633ac80f1bc2708f3cffa31f053b63e692287092fcff.php:144
#128 Grav\Common\Debugger:deprecatedErrorHandler in /var/www/html/cms.pipemaster.de/cache/twig/be/bef5367be18a200dd133633ac80f1bc2708f3cffa31f053b63e692287092fcff.php:144
#127 __TwigTemplate_6566a793f25aee10eb3b8206d24ae0e900eb2eb00744544f6774432ccc4f98b8:block_label in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:216
#126 Twig\Template:displayBlock in /var/www/html/cms.pipemaster.de/cache/twig/be/bef5367be18a200dd133633ac80f1bc2708f3cffa31f053b63e692287092fcff.php:96
#125 __TwigTemplate_6566a793f25aee10eb3b8206d24ae0e900eb2eb00744544f6774432ccc4f98b8:block_contents in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:216
#124 Twig\Template:displayBlock in /var/www/html/cms.pipemaster.de/cache/twig/be/bef5367be18a200dd133633ac80f1bc2708f3cffa31f053b63e692287092fcff.php:57
#123 __TwigTemplate_6566a793f25aee10eb3b8206d24ae0e900eb2eb00744544f6774432ccc4f98b8:block_field in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:216
#122 Twig\Template:displayBlock in /var/www/html/cms.pipemaster.de/cache/twig/d2/d2b319ee30d0afc49b8acdb56a5353b3cc081d521285e3fc4079422e6bea380a.php:77
#121 __TwigTemplate_acf478c435b4de67309c8fe23aa64fc1e78a62d77dad46b54bc3ff69385eccfc:doDisplay in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:455
#120 Twig\Template:displayWithErrorHandling in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:422
#119 Twig\Template:display in /var/www/html/cms.pipemaster.de/cache/twig/be/bef5367be18a200dd133633ac80f1bc2708f3cffa31f053b63e692287092fcff.php:39
#118 __TwigTemplate_6566a793f25aee10eb3b8206d24ae0e900eb2eb00744544f6774432ccc4f98b8:doDisplay in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:455
#117 Twig\Template:displayWithErrorHandling in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:422
#116 Twig\Template:display in /var/www/html/cms.pipemaster.de/cache/twig/be/bef5367be18a200dd133633ac80f1bc2708f3cffa31f053b63e692287092fcff.php:278
#115 __TwigTemplate_6566a793f25aee10eb3b8206d24ae0e900eb2eb00744544f6774432ccc4f98b8:block_group in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:216
#114 Twig\Template:displayBlock in /var/www/html/cms.pipemaster.de/cache/twig/be/bef5367be18a200dd133633ac80f1bc2708f3cffa31f053b63e692287092fcff.php:124
#113 __TwigTemplate_6566a793f25aee10eb3b8206d24ae0e900eb2eb00744544f6774432ccc4f98b8:block_contents in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:216
#112 Twig\Template:displayBlock in /var/www/html/cms.pipemaster.de/cache/twig/be/bef5367be18a200dd133633ac80f1bc2708f3cffa31f053b63e692287092fcff.php:57
#111 __TwigTemplate_6566a793f25aee10eb3b8206d24ae0e900eb2eb00744544f6774432ccc4f98b8:block_field in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:216
#110 Twig\Template:displayBlock in /var/www/html/cms.pipemaster.de/cache/twig/d2/d2b319ee30d0afc49b8acdb56a5353b3cc081d521285e3fc4079422e6bea380a.php:77
#109 __TwigTemplate_acf478c435b4de67309c8fe23aa64fc1e78a62d77dad46b54bc3ff69385eccfc:doDisplay in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:455
#108 Twig\Template:displayWithErrorHandling in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:422
#107 Twig\Template:display in /var/www/html/cms.pipemaster.de/cache/twig/be/bef5367be18a200dd133633ac80f1bc2708f3cffa31f053b63e692287092fcff.php:39
#106 __TwigTemplate_6566a793f25aee10eb3b8206d24ae0e900eb2eb00744544f6774432ccc4f98b8:doDisplay in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:455
#105 Twig\Template:displayWithErrorHandling in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:422
#104 Twig\Template:display in /var/www/html/cms.pipemaster.de/cache/twig/df/df70eba9a45d9f3c987786b2bc51789dd0019ee59d0dc6c29f60c6d02efafb3d.php:103
#103 __TwigTemplate_2a16a7e8aaa98e255390e242dc91d8b6bedcfb160d038ab0ecadab3ef7547fce:block_field in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:216
#102 Twig\Template:displayBlock in /var/www/html/cms.pipemaster.de/cache/twig/df/df70eba9a45d9f3c987786b2bc51789dd0019ee59d0dc6c29f60c6d02efafb3d.php:72
#101 __TwigTemplate_2a16a7e8aaa98e255390e242dc91d8b6bedcfb160d038ab0ecadab3ef7547fce:doDisplay in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:455
#100 Twig\Template:displayWithErrorHandling in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:422
#99 Twig\Template:display in /var/www/html/cms.pipemaster.de/cache/twig/aa/aab4257883a1f873640341d5284f907315cc40730f8fa4dbc7c8817b606013dd.php:48
#98 __TwigTemplate_b5e9a2fe0a7b1f4a76e5da22e32083521d6a2ebb6c8c796b575b82c85da34c1c:block_field in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:216
#97 Twig\Template:displayBlock in /var/www/html/cms.pipemaster.de/cache/twig/d2/d2b319ee30d0afc49b8acdb56a5353b3cc081d521285e3fc4079422e6bea380a.php:77
#96 __TwigTemplate_acf478c435b4de67309c8fe23aa64fc1e78a62d77dad46b54bc3ff69385eccfc:doDisplay in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:455
#95 Twig\Template:displayWithErrorHandling in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:422
#94 Twig\Template:display in /var/www/html/cms.pipemaster.de/cache/twig/aa/aab4257883a1f873640341d5284f907315cc40730f8fa4dbc7c8817b606013dd.php:35
#93 __TwigTemplate_b5e9a2fe0a7b1f4a76e5da22e32083521d6a2ebb6c8c796b575b82c85da34c1c:doDisplay in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:455
#92 Twig\Template:displayWithErrorHandling in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:422
#91 Twig\Template:display in /var/www/html/cms.pipemaster.de/cache/twig/df/df70eba9a45d9f3c987786b2bc51789dd0019ee59d0dc6c29f60c6d02efafb3d.php:103
#90 __TwigTemplate_2a16a7e8aaa98e255390e242dc91d8b6bedcfb160d038ab0ecadab3ef7547fce:block_field in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:216
#89 Twig\Template:displayBlock in /var/www/html/cms.pipemaster.de/cache/twig/df/df70eba9a45d9f3c987786b2bc51789dd0019ee59d0dc6c29f60c6d02efafb3d.php:72
#88 __TwigTemplate_2a16a7e8aaa98e255390e242dc91d8b6bedcfb160d038ab0ecadab3ef7547fce:doDisplay in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:455
#87 Twig\Template:displayWithErrorHandling in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:422
#86 Twig\Template:display in /var/www/html/cms.pipemaster.de/cache/twig/e1/e1738d6e81157393e71b95285e27f88471695cbc0dd380cc54d8286ba5f26e50.php:369
#85 __TwigTemplate_b59a3f21337481f313a75216c55a687374c2a4ac425232706b8478aaf5b6bdb9___990961275:doDisplay in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:455
#84 Twig\Template:displayWithErrorHandling in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:422
#83 Twig\Template:display in /var/www/html/cms.pipemaster.de/cache/twig/e1/e1738d6e81157393e71b95285e27f88471695cbc0dd380cc54d8286ba5f26e50.php:240
#82 __TwigTemplate_b59a3f21337481f313a75216c55a687374c2a4ac425232706b8478aaf5b6bdb9:block_field in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:216
#81 Twig\Template:displayBlock in /var/www/html/cms.pipemaster.de/cache/twig/d2/d2b319ee30d0afc49b8acdb56a5353b3cc081d521285e3fc4079422e6bea380a.php:77
#80 __TwigTemplate_acf478c435b4de67309c8fe23aa64fc1e78a62d77dad46b54bc3ff69385eccfc:doDisplay in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:455
#79 Twig\Template:displayWithErrorHandling in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:422
#78 Twig\Template:display in /var/www/html/cms.pipemaster.de/cache/twig/e1/e1738d6e81157393e71b95285e27f88471695cbc0dd380cc54d8286ba5f26e50.php:43
#77 __TwigTemplate_b59a3f21337481f313a75216c55a687374c2a4ac425232706b8478aaf5b6bdb9:doDisplay in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:455
#76 Twig\Template:displayWithErrorHandling in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:422
#75 Twig\Template:display in /var/www/html/cms.pipemaster.de/cache/twig/ad/adc1a53e09e803c8067e0a8c52818d34c87f22f0efc6d96e148ead7ebc5c7354.php:82
#74 __TwigTemplate_e08ba2eff7bc4f142733fb4698507bda7e7d35c0c978a96dd8176d5e6dd5111f:doDisplay in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:455
#73 Twig\Template:displayWithErrorHandling in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:422
#72 Twig\Template:display in /var/www/html/cms.pipemaster.de/cache/twig/b5/b5ec61f6db91dd54333f451bfe0c2b23ea801a5f89930bc9819d005884d70265.php:676
#71 __TwigTemplate_a9b95e19f69e656dc4fd239b5f3d438b38cdea9ab65cfd461e21962c6a6515e5:block_content in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:216
#70 Twig\Template:displayBlock in /var/www/html/cms.pipemaster.de/cache/twig/06/062b7fc0afe99e5f57b378810063229871d0215f2198d638ba6cb95ba2ac83d9.php:320
#69 __TwigTemplate_978babd4df48ea29e6592b5b08c1cea823724e93290f1fdba603d2eef7e60fab:block_content_wrapper in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:216
#68 Twig\Template:displayBlock in /var/www/html/cms.pipemaster.de/cache/twig/06/062b7fc0afe99e5f57b378810063229871d0215f2198d638ba6cb95ba2ac83d9.php:264
#67 __TwigTemplate_978babd4df48ea29e6592b5b08c1cea823724e93290f1fdba603d2eef7e60fab:block_page in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:216
#66 Twig\Template:displayBlock in /var/www/html/cms.pipemaster.de/cache/twig/06/062b7fc0afe99e5f57b378810063229871d0215f2198d638ba6cb95ba2ac83d9.php:214
#65 __TwigTemplate_978babd4df48ea29e6592b5b08c1cea823724e93290f1fdba603d2eef7e60fab:block_body in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:216
#64 Twig\Template:displayBlock in /var/www/html/cms.pipemaster.de/cache/twig/06/062b7fc0afe99e5f57b378810063229871d0215f2198d638ba6cb95ba2ac83d9.php:67
#63 __TwigTemplate_978babd4df48ea29e6592b5b08c1cea823724e93290f1fdba603d2eef7e60fab:doDisplay in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:455
#62 Twig\Template:displayWithErrorHandling in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:422
#61 Twig\Template:display in /var/www/html/cms.pipemaster.de/cache/twig/a6/a6234fe3bd05158fa1fe26a7f4463dd85c56a4e241e7f0b59be5b73dff17460f.php:34
#60 __TwigTemplate_113c2d009bcff6f7abcac9b7e3f97b051e3e8777bb7f7cf8f8eee125edd57468:doDisplay in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:455
#59 Twig\Template:displayWithErrorHandling in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:422
#58 Twig\Template:display in /var/www/html/cms.pipemaster.de/cache/twig/b5/b5ec61f6db91dd54333f451bfe0c2b23ea801a5f89930bc9819d005884d70265.php:99
#57 __TwigTemplate_a9b95e19f69e656dc4fd239b5f3d438b38cdea9ab65cfd461e21962c6a6515e5:doDisplay in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:455
#56 Twig\Template:displayWithErrorHandling in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:422
#55 Twig\Template:display in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Template.php:434
#54 Twig\Template:render in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/TemplateWrapper.php:47
#53 Twig\TemplateWrapper:render in /var/www/html/cms.pipemaster.de/vendor/twig/twig/src/Environment.php:384
#52 Twig\Environment:render in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Twig/Twig.php:388
#51 Grav\Common\Twig\Twig:processSite in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Service/OutputServiceProvider.php:28
#50 Grav\Common\Service\OutputServiceProvider:Grav\Common\Service{closure} in /var/www/html/cms.pipemaster.de/vendor/pimple/pimple/src/Pimple/Container.php:118
#49 Pimple\Container:offsetGet in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/RenderProcessor.php:28
#48 Grav\Common\Processors\RenderProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#47 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#46 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/DebuggerAssetsProcessor.php:28
#45 Grav\Common\Processors\DebuggerAssetsProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#44 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#43 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/PagesProcessor.php:69
#42 Grav\Common\Processors\PagesProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#41 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#40 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/TwigProcessor.php:27
#39 Grav\Common\Processors\TwigProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#38 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#37 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/AssetsProcessor.php:28
#36 Grav\Common\Processors\AssetsProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#35 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#34 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/SchedulerProcessor.php:29
#33 Grav\Common\Processors\SchedulerProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#32 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#31 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/BackupsProcessor.php:28
#30 Grav\Common\Processors\BackupsProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#29 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#28 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/TasksProcessor.php:59
#27 Grav\Common\Processors\TasksProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#26 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#25 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/RequestProcessor.php:52
#24 Grav\Common\Processors\RequestProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#23 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#22 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/ThemesProcessor.php:27
#21 Grav\Common\Processors\ThemesProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#20 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#19 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/PluginsProcessor.php:30
#18 Grav\Common\Processors\PluginsProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#17 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#16 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/InitializeProcessor.php:78
#15 Grav\Common\Processors\InitializeProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#14 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#13 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/DebuggerProcessor.php:27
#12 Grav\Common\Processors\DebuggerProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#11 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#10 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/ErrorsProcessor.php:27
#9 Grav\Common\Processors\ErrorsProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#8 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#7 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/LoggerProcessor.php:48
#6 Grav\Common\Processors\LoggerProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#5 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#4 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Processors/ConfigurationProcessor.php:28
#3 Grav\Common\Processors\ConfigurationProcessor:process in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:45
#2 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Framework/RequestHandler/Traits/RequestHandlerTrait.php:57
#1 Grav\Framework\RequestHandler\RequestHandler:handle in /var/www/html/cms.pipemaster.de/system/src/Grav/Common/Grav.php:249
#0 Grav\Common\Grav:process in /var/www/html/cms.pipemaster.de/index.php:53

Now had time to dig a litlebit. I think the problem is systematic because ist in at least two YAML-files related to forms. Please could one check the attached file for errors?
Thanks in advance.
Steffen
{# START Variables #}

  {% import "global/macros.html.twig" as macros %}

{# END Variables #}
<section class="section
  {% if not header.custom.altBgImage %}
    {{ setBgColor|default(macros.selectedBg(header.custom.bgColor)) }}
  {% endif %}
  {{ (header.custom.sliderSpecialActive == true) ? "section-overview section-overview-slider section-overview-slider-rounded" }}
  {{ classes }}
"
{{ (id) ? "id='#{id}'" }}
>

  {% if header.custom.altBgImage is defined %}
    {% block bgImage %}
      <div class="bg-container {{ macros.selectedOpacityBg(header.custom.bgOpacity) }}" style="background: url({{ page.media[header.custom.altBgImage].url }}) no-repeat;"></div>
    {% endblock bgImage %}
  {% endif %}

  <div class="container">

    {% if header.custom.headlineComprehensive or header.custom.subheadlineComprehensive %}
      <div class="row section-item {{ macros.textAlign(setHeadlineComprehensiveAlign|default(header.custom.headlineComprehensiveAlign)) }}">
        <div class="col-xs-12 {{ macros.colAlignPush(setHeadlineComprehensiveAlign|default(header.custom.headlineComprehensiveAlign)) }} section-item-element">
          <div class="headline-block">

            {% if header.custom.headlineComprehensive %}
              {% include "partials/block/block_headline.html.twig" with {
                "headlineField": setHeadline|default(header.custom.headlineComprehensive),
                "headlineClass": setHeadlineClass|default("size-2"),
                "headlineAlign": setHeadlineAlign|default(header.custom.headlineComprehensiveAlign)
              } %}
            {% endif %}

            {% if header.custom.subheadlineComprehensive %}
              {% include "partials/block/block_subheadline.html.twig" with {
                "subheadlineField": setSubheadlienComprehensive|default(header.custom.subheadlineComprehensive),
                "subheadlineAlign": setSubheadlineComprehensiveAlign|default(header.custom.subheadlineComprehensiveAlign),
                "subheadlineSize": setSubheadlineComprehensiveSize|default("size-6")
              } %}
            {% endif %}

          </div>
        </div>
      </div>
    {% endif %}

    <div class="row flex-row">
      <div class="col-xs-12 section-item-element slider-item-element">
        <div class="content-block">
            {% if (header.custom.sliderSpecialActive == true) %}
              {% embed 'partials/slick.html.twig' with {
                "classes": "flex-row",
                "defaultSettings":
                  '"infinite": true,
                  "dots": true,
                  "speed": 500,
                  "slidesToShow": 3,
                  "useTransform": true,
                  "centerMode": true,
                  "centerPadding": 0,
                  "arrows": true,
                  "autoplay": true,
                  "responsive": [{
                    "breakpoint": 1200,
                    "settings": {
                      "slidesToShow": 1,
                      "autoplay": false,
                      "arrows": false
                    }
                  }]'
              } %}

                {% block slideContent %}
                  {% for i in header.custom.textBlock %}

                    {% set site = page.find(i.page) %}
                    {% include "partials/item/item_tile.html.twig" with {
                      "page": site,
                      "setImage": page.media[i.site],
                      "setImageThumb": site.chosenImageAltText
                    } %}
                  {% endfor %}

                {% endblock slideContent %}
              {% endembed %}

            {% else %}

              {% embed 'partials/slick.html.twig' with {
                "slickContent": data,
                "classes": "slick-arrows-centered flex-row",
                "defaultSettings":
                  '"infinite": true,
                  "dots": true,
                  "speed": 500,
                  "slidesToShow": 3,
                  "arrows": true,
                  "responsive": [{
                    "breakpoint": 1200,
                    "settings": {
                      "slidesToShow": 2,
                      "autoplay": false,
                      "arrows": false
                    }
                  },
                  {
                    "breakpoint": 768,
                    "settings": {
                      "slidesToShow": 1,
                      "autoplay": false,
                      "arrows": false
                    }
                  }]'
              } %}

                {% block slideContent %}
                  {% for i in header.custom.textBlock %}

                    {% set site = page.find(i.page) %}
                    {% include "partials/item/item_tile.html.twig" with {
                      "page": site,
                      "setImage": page.media[i.site],
                      "setImageThumb": site.chosenImageAltText
                    } %}
                  {% endfor %}

                {% endblock slideContent %}

              {% endembed %}

            {% endif %}
        </div>
      </div>

    </div>
  </div>
</section>