Nibodhika, 1 year ago

One thing I learnt a while back is that if you break your GUI you can always use Ctrl+Alt+F<1-9> to go to different terminals to try to solve it. Worst case scenario I would do something like mv .config .config.bkp and sudo systemctl restart that should hopefully get you back to default settings on the UI.

Source: been there, done that. Not exactly your error but similar enough.