When I go to any page, the following error appears in the log:
[proxy_fcgi:error] [pid 20333] [client 172.18.0.6:52608] AH01071: Got error 'PHP message: Uncaught PHP Exception Symfony\Component\Routing\Exception\MethodNotAllowedException: "" at /var/www/html/web/core/lib/Drupal/Core/Routing/MethodFilter.php line 46', referer: http://example.dk.ddev.site/da
At first I thought it had something to do with my new theme that I am about to make. But if I change theme, the error is still there. I am using Drupal v9.2.5.
How do I track down the cause of the error?