Hi, i try to start fortnite with the launcher but every time an error message appears : " an unreal process has crashed : UE4- Fortnite game "

Hi i need help,

i try to start to play Fortnite with the launcher but every time an error message appears : " An unreal processas crashed : UE4 -Fortnite Game "

maybe the problem is my graphic card but i played 2 months without any crashs.

i don’t know what to do…