System is off after adding custom CSS

[belimbor]

Jellyfin Version: 10.9.6
Jellyfin Install Method: Linux Ubuntu

Hello,

I have added this Custom CSS 

https://pastebin.com/CHqhWdfE

to the Dashbosrd -> General -> Custom CSS page and now Jellyfin is off (website is down and mobile app can't connect to the server)

How can I undo that change? Did not find Custom CSS location in the installation folder.

[TheDreadPirate]

Did you initiate the restart from the dashboard or from the command line? If you restarted from the dashboard, try restarting from the command line.

sudo systemctl restart jellyfin

If that doesn't work, can you share your server logs via pastebin?