Error

Corn_Pig try disabling foskym/flarum-custom-levels and see if it helped

Corn_Pig that extension generates an error in your logs: flarum.ERROR: TypeError: floor(): Argument #1 ($num) must be of type int|float, string given in /data/host/skeleton/vendor/foskym/flarum-custom-levels/src/Listeners/GiveExp.php:75

I think you have misconfigured the extension, or there is a bug in that extension. In order to check this, can you please show me a screenshot of that extension’s settings in your admin panel?

Corn_Pig I have created temporary admin account, cleared your forum cache and adjusted the config fields so that they contain only numbers. Can you check if the issue persists, please?

Corn_Pig I assume that the issue was resolved then? If yes, we should report this to the author of the extension to prevent misconfiguration across forums

Corn_Pig I have found the exact issue now. You have provided an invalid range in your configuration: [1], which the extension did not assume, therefore it produced the error above. I have reported this at https://github.com/FoskyM/flarum-custom-levels/issues/12