Fatal error on playing game

Hello, I’m working on a multiplayer game. After building the game, I started playing with my friends to test it. But whoever is hosting the game gets a fatal error after a few minutes. I couldn’t understand what the problem was, all I could find is the log below

Fatal error!

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0xffffffffffffffff

0x00007ff64792439f CastleDestroyer-Win64-Shipping.exe!UnknownFunction []
0x00007ff647942563 CastleDestroyer-Win64-Shipping.exe!UnknownFunction []
0x00007ff64792b952 CastleDestroyer-Win64-Shipping.exe!UnknownFunction []
0x00007ff64793f1e1 CastleDestroyer-Win64-Shipping.exe!UnknownFunction []
0x00007ff647913f1b CastleDestroyer-Win64-Shipping.exe!UnknownFunction []
0x00007ff647914618 CastleDestroyer-Win64-Shipping.exe!UnknownFunction []
0x00007ff646449acb CastleDestroyer-Win64-Shipping.exe!UnknownFunction []
0x00007ff646443ec1 CastleDestroyer-Win64-Shipping.exe!UnknownFunction []
0x00007ffdcb597614 KERNEL32.DLL!UnknownFunction []
0x00007ffdcbe426a1 ntdll.dll!UnknownFunction []

Crash in runnable thread AudioMixerRenderThread(1)