Unreal engine is crashing my HLL game

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Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00407d54

d3d11
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
HLL_Win64_Shipping
kernel32
ntdll

i keep getting this crash report, ive checked these forms and did most solutions, ive re installed anti cheat, ive reduced audio, ive even turned down some graphics, and re installed the game. Can anyone help me please?