Arma Reforger crashing

[PFC B. Jonas]

Arma Reforger crashing when I try to open anything, ex Training, Campaign, etc. Any ideas how to fix this issue? I tried to unistall and reinstall without success.

"Session Error"
Kick cause code: group=4 'DATA'. reason=5 'ADDON_LOAD_ERROR'

 

[1LT C. Mitchell]

Private,

Try deleting and reinstalling all mods.