The server is not running expansion.

In T189876#2769256, @Geez wrote:

Hello CrazyC4rl.
This looks very similar to https://feedback.bistudio.com/T189830, in which the reporter mentions its possibly caused by the expansion mod. Please check if you run the mod and try to disable it. If the crashes no longer occur then the issue is in the mod and there is nothing we can do on our end.
Regards,
Geez

Could you elaborate on the perceived similarity to T189830, as that seems to be an issue with OnStoreLoad, whereas the crash we're experiencing occurs randomly during runtime, allegedly during SaveCurrentFSMState, and doesn't seem to be tied to player login / database load. @Geez

Do you run any other mods? Can you try to rever the server to completely vanilla setup?

@Geez

This is a live server, we're not in a position to remove mods. We've provided dump files for analysis in the hopes of narrowing down the issue, any information you can provide to this end would be appreciated, as we don't have access to the debugging symbols that you do.

I know prior to 1.27 everything worked as intended without this crash. If changes have been made that require us to adjust, rework, or remove mods we would like as much information as possible to proceed.