Unreal keep crashing everytime i try to render my movie

Please I’m pretty disperate about this. i use UE4 for my personal music videos and everytime i try to render my movie in movie queue render, or simply export the sequence in sequence editor, it crashes immediately with follow message:

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION writing address 0x0000000000000070

UE4Editor_VirtualCamera
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_Engine
UE4Editor_LevelSequence
UE4Editor_LevelSequence
UE4Editor_MovieScene
UE4Editor_MovieScene
UE4Editor_MovieScene
UE4Editor_MovieScene
UE4Editor_MovieScene
UE4Editor_MovieScene
UE4Editor_MovieScene
UE4Editor_MovieScene
UE4Editor_MovieScene
UE4Editor_MovieScene
UE4Editor_MovieScene
UE4Editor_MovieScene
UE4Editor_LevelSequence
UE4Editor_MovieScene
UE4Editor_MovieScene
UE4Editor_MovieRenderPipelineCore
UE4Editor_MovieRenderPipelineCore
UE4Editor_MovieRenderPipelineCore
UE4Editor
UE4Editor
UE4Editor
UE4Editor
UE4Editor
UE4Editor
kernel32
ntdll

I hope some angel here can help me to fight this problem. :frowning: i don’t know what i have to do.