private epoch server crashes after adding a addon

[thomas102812 0]

i made a private server for me and a few friends and i added a addon that i singed myself named: German WW2 pack

and now everytime i join the server it crashes while loading or while i have played for like 3 second, my game doesnt crash but the server console says it stopped working.

does anyone know how to fix it?

 

-thomas