Hi everyone,
I got a problem since few days now.
I can’t find how to resolve my problem for now.
I have packaged my project for windows 64 bit, it’s working, i prepared my dedicated server too, it’s working.
But when i try to start my singleplayer project i got this debugging problem:
For the SinglePlayer:
https://forums.unrealengine.com/filedata/fetch?filedataid=116225&type=thumb
And for the me Dedicated Server it’s crashing too:
https://forums.unrealengine.com/filedata/fetch?filedataid=116226&type=thumb
If someone can please help mewith this problem 
Thanks you guys for your help.