UE 5.4.4 Crashes on Play after changes made on BP_FirstpersonCharacter

Development Platform & Builds Debugging, Optimization, & Profiling
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It does not crash unless i make changes on BP_FirstpersonCharacter.
When i do and press the Play button, it crashes.

I CAN’T WORK CAUSE OF THIS THING
IT STOPED ME
please somebody help :sob:

Here is what it says:

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffffffffffff

UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_CoreUObject
UnrealEditor_Engine
UnrealEditor_CoreUObject
UnrealEditor_Engine
UnrealEditor_UnrealEd
UnrealEditor_Engine
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll