It seems to be a nullreference
The game crashed shortly after an autosave, altough I don't know if it is relevant.
3071.180 Info AppManagerStates.cpp
3125.310 Error CrashHandler.cpp:494: Exception Code: c0000005, Address: 0x00007ff746b92d05as
ModuleBase: 0x00007ff746a20000, ImageSize: 01e1d000, RelativeAddress: 00172d05
3125.310 Error CrashHandler.cpp:500: Access Violation: Read at address 0000000000000000