I restored the page from the trash – if you still have a few minutes to spare it would be a great help. Thanks!
Thank you for your quick response.
I thought it would be something weird and unspecific like this. Unfortunately, I have no clue where I could begin to solve this. There is no other WordPress installation present and reinstalling WordPress 6.3 did not help.
Do you have a tip where I could start to solve this? Thanks in advance!