I am upgrading from a perfectly working (and current) grav installation of php7 to php8. The admin pages seem to work fine, but the main homepage seems to give me this rather evil error:
Server Error Sorry, something went terribly wrong! E_NOTICE - spl_autoload_register(): Argument #2 ($do_throw) has been ignored, spl_autoload_register() will always throw For further details please review your logs/ folder, or enable displaying of errors in your system configuration.
I have looked into things. If I do a ‘fresh’ install all is well, but the moment I try to restore my backup, I get this error on the main page. How do I ‘move’ my installation from 7.x to 8.x no guides. I did google searches, composer installs etc. to no avail.
Is there a magical file I need to update? I am using php-fpm which again, works fine if I start with a ‘new’ install.