WPLMS Theme: Content accsess to Quizes2

Hallo, I have the same problem like here:https://www.ads-software.com/support/topic/wplms-theme-content-accsess-to-quizes/ You didn′t solve that at the time (Your solution did not help).

I′m using the Theme “WPLMS”. With Plugin “Groups” I can′t see the question and marked answer in quiz results.->(Quiz results are showing as popup after the quiz).
By deactivating the plugin all Information are available.

The page I need help with: [log in to see the link]