No CSS on Nextcloud AIO installation

Hey! I completed installation of Nextcloud AIO thru Cloudflare Tunnels, everything works expect for the CSS of the dashboard…

What can be the issue? Can anybody help me?

Solved issue by changing the theme BUT THE UI IS HALFWAY BROKEN

Check Developer Tools->Network in a browser, is there any failed to load CSS? Or errors in a Browser console?

that’s the only one.