Most of the UI on nextcloud is invisible

[DeRusGAMING]

Hi, sorry, I tried to make my own research, but haven't found anyone with this issue. Most of my Nextcloud UI website is not loading. I tried a few different devices. But it's the same everywhere. I inspected the page and the page is displaying correctly (according to the code).

I checked the AIO interface for something interesting in the logs, but everything seems fine, nothing is failing.
I am not very tech-savvy, so I don't know where else to look. Can someone help me? Screens of the issue provided.

Login screen

Logged in account

[szaimen]

Hi, please post this at https://help.nextcloud.com. There more eyes will see it.