Can anyone understand what is going on?
I searched for users in the backoffice, and suddenly I got a 500 with the following:
Fatal error: Uncaught Error: Undefined class constant ‘Monolog\Utils::DEFAULT_JSON_FLAGS’ in /customers/5/a/c/MYDOMAIN.se/httpd.www/vendor/monolog/monolog/src/Monolog/Handler/AbstractHandler.php:194 Stack trace: #0 /customers/5/a/c/MYDOMAIN.se/httpd.www/vendor/monolog/monolog/src/Monolog/Handler/AbstractHandler.php(113): Monolog\Handler\AbstractHandler->getDefaultFormatter() #1 /customers/5/a/c/MYDOMAIN.se/httpd.www/vendor/monolog/monolog/src/Monolog/Handler/AbstractProcessingHandler.php(37): Monolog\Handler\AbstractHandler->getFormatter() #2 /customers/5/a/c/MYDOMAIN.se/httpd.www/vendor/monolog/monolog/src/Monolog/Logger.php(344): Monolog\Handler\AbstractProcessingHandler->handle(Array) #3 /customers/5/a/c/MYDOMAIN.se/httpd.www/vendor/monolog/monolog/src/Monolog/Logger.php(470): Monolog\Logger->addRecord(500, ‘Undefined class…’, Array) #4 /customers/5/a/c/MYDOMAIN.se/httpd.www/system/src/Grav/Common/Errors/Errors.php(73): Monolog\Logger->addCritical(‘Undefined class…’) #5 /customers/5/a/c/MYDOMAIN.se/httpd.www/vendor/filp/w in /customers/5/a/c/MYDOMAIN.se/httpd.www/vendor/monolog/monolog/src/Monolog/Handler/AbstractHandler.php on line 194 Fatal error: Uncaught Error: Undefined class constant ‘Monolog\Utils::DEFAULT_JSON_FLAGS’ in /customers/5/a/c/MYDOMAIN.se/httpd.www/vendor/monolog/monolog/src/Monolog/Handler/AbstractHandler.php:194 Stack trace: #0 /customers/5/a/c/MYDOMAIN.se/httpd.www/vendor/monolog/monolog/src/Monolog/Handler/AbstractHandler.php(113): Monolog\Handler\AbstractHandler->getDefaultFormatter() #1 /customers/5/a/c/MYDOMAIN.se/httpd.www/vendor/monolog/monolog/src/Monolog/Handler/AbstractProcessingHandler.php(37): Monolog\Handler\AbstractHandler->getFormatter() #2 /customers/5/a/c/MYDOMAIN.se/httpd.www/vendor/monolog/monolog/src/Monolog/Logger.php(344): Monolog\Handler\AbstractProcessingHandler->handle(Array) #3 /customers/5/a/c/MYDOMAIN.se/httpd.www/vendor/monolog/monolog/src/Monolog/Logger.php(470): Monolog\Logger->addRecord(500, ‘Uncaught Error:…’, Array) #4 /customers/5/a/c/MYDOMAIN.se/httpd.www/system/src/Grav/Common/Errors/Errors.php(73): Monolog\Logger->addCritical(‘Uncaught Error:…’) #5 /customers/5/a/c/MYDOMAIN.se/httpd.www/vendor/filp/w in /customers/5/a/c/MYDOMAIN.se/httpd.www/vendor/monolog/monolog/src/Monolog/Handler/AbstractHandler.php on line 194