发一下crashlog吧
win+r输入%localappdata%找到PAYDAY2文件夹，找到crash.txt

Application has crashed: C++ exception
[string "lib/managers/playermanager.lua"]:965: attempt to index a nil value
SCRIPT STACK
set_unit() lib/network/base/networkpeer.lua:2338
spawn_unit() lib/network/base/networkpeer.lua:2241
spawn_players() lib/network/base/basenetworksession.lua:1513
update() lib/states/ingamewaitingforplayers.lua:293
update() core/lib/utils/game_state_machine/coregamestatemachine.lua:92
update() lib/setups/setup.lua:880
update() lib/setups/gamesetup.lua:718
update() lib/setups/networkgamesetup.lua:21
core/lib/setups/coresetup.lua:557
-------------------------------
Callstack:
payday2_win32_release (???) ???
payday2_win32_release (???) ???
payday2_win32_release (???) ???
payday2_win32_release (???) zip_get_name
ntdll (???) RtlDosSearchPath_Ustr
ntdll (???) ZwQueryVirtualMemory
KERNELBASE (???) VirtualQueryEx
KERNELBASE (???) SetUnhandledExceptionFilter
payday2_win32_release (???) ???
??? (???) ???
??? (???) ???
??? (???) ???
??? (???) ???
??? (???) ???
SogouPy (???) ImeDestroy
??? (???) ???
??? (???) ???
??? (???) ???
??? (???) ???
??? (???) ???
??? (???) ???
??? (???) ???
??? (???) ???
payday2_win32_release (???) NvOptimusEnablement
??? (???) ???
??? (???) ???
??? (???) ???
??? (???) ???
??? (???) ???
??? (???) ???
??? (???) ???
payday2_win32_release (???) NvOptimusEnablement
-------------------------------
Current thread: Main
-------------------------------
System information:
Application version : 1.96.909
CPU : Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz (1 core); SSE; SSE2; SSE3; SSSE3; SSE4.1; SSE4.2
DirectX : 12.0
GPU : Intel(R) HD Graphics 620 / igdumdim32.dll[27.20.100.8691]
Language : schinese
Memory : 7965MB 88KB
OS : 6.2.9200 () 0x100-0x1 (64 bits)
Physics : threaded
Renderer : DX9 threaded
Sound : Realtek Semiconductor Corp. (扬声器/听筒 (Realtek Audio))