Hi there,
i belive now that this is a “dugi error” in the latest version.
Me and some others have the same issue.
See –> https://www.dugiguides.com/forum/discussion/1121/retail-cant-see-guide-menu-lua-error-on-dugi-fix-dugi-version-8-9-71#latest
(i use the german client too btw 
Cheers,
Radi