Hi, I was now able to receive an error log. Here I have an indication that a certian plugin (kirki) is causing problems. Can I deactivate this without using the backend?
Here is the exact error message (sorry, contains also some German):
03-Jan-2020 13:36:51 UTC] PHP Notice: Undefined index: settings in /home/wordpress/htdocs/wp-content/plugins/kirki/core/class-kirki-field.php on line 248
[03-Jan-2020 13:36:51 UTC] PHP Notice: Kirki_Field::__construct wurde fehlerhaft aufgerufen. Typo found in field – setting instead of settings.
Weitere Informationen: Debugging in WordPress (engl.)
(Diese Meldung wurde in Version 3.0.10 hinzugefügt.) in /home/wordpress/htdocs/wp-includes/functions.php on line 4986
