Unreal Engine 4.26 Crashed

Hi everyone, I am currently trying to make a multiplayer game with Steam. I am using AdvanceSession and AdvanceSteamSession to make the game. When I tried to test the game, the game always crash when loading to the play map. And also, here is the log.
The diagnostics file.log (72.0 KB)
the log in the crash window.txt (2.9 KB)