As for the distorted default UI, can you please try pressing Esc then Edit Mode, in there click the downdrop for Layout and select either classic or modern, for now at least to troubleshoot this issue at hand.
Before doing so you can use the same downdrop and choose share and paste that in a txt file or something.
Okay all this does is confirms my suspicions, a corrupted savedvariables for Lokaii.
In the Dugi Installer, click on the Settings button, then click Repair, click ok until that small window disappears. Click Okay then click Reinstall. Try the characters again.