I have solved my problem now !
The solution :
- Rename community folder
- Restart MSFS
- Uninstall JMB VL-3 via content manager
- Reinstall JMB VL-3 via content manager
also after moving all mods from renamed folder to community there are no problems anymore !
(in the beta of AAU02 phase my solution was : revert to the previous non beta built)