Dear,
I do not use the following plugins, is it safe to delete this:
EventOn and WPLMS EventOn
Buddydrive
Also I have visual composer activated, but I do not use it I believe. Or is it neccessary to have the them functioning. I do use the build in editor in the wplms theme (this one: https://prntscr.com/hduh14). Does it have any relation with visual composer?
Kind regards
Yes you can deactivate all those plugins .
In wplms only 3 plugins are necessary which are :
Buddypress , vibe customtypes and vibe course module plugin .
You can deactivate any of the remaining plugins.