Have you tried signing out and back into the Xbox app on your PC?
I’ve seen that fix the same error number with FS2024 before.
For FS2020, that code covers a lot of potential causes.
This article may be some help: https://forums.flightsimulator.com/t/how-to-troubleshoot-faulting-module-ucrtbase-dll-and-or-exception-code-0xc0000005-crashes/591670/1