Since this Morning I don´t get errors anymore. But the Site is garbish. I Uploaded the Folder as it was in the Zip File via ftp to my hoster. The only thing I changed is the Foldername from Flatboard to FlatBoard since the Subdomain Links to FlatBoard. Today I tryed other Browsers, Disabling AddBlocker and Cookie Blocker and so on. Nothing helps. I tried Standard and advanced Theme, both the same. login gives only error 404. !
Error loading notifications: SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data main.js:212:33 XHRGET https://forum.ruehmann.name/api/notifications [HTTP/2 404 105ms]
Error loading notifications: SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data main.js:212:33 XHRPOST https://forum.ruehmann.name/api/presence/update [HTTP/2 404 108ms]
It's a JSON malformation, so whatever JSON file its pulling from, isn't formatted correctly or its empty. I'll would backup anything that important, delete it and reinstall Flatboard again. That usually works for me.
It's not the same problem, mine is using a subfolder which is struggling to even read the subfolder, @JPRuehmann has a completly different issue. But it might be a simular issue when it comes to resources not found