hi,
i don't know with mod has make an error now, TCS or your mod. I haven't a screenshot for the error. But i think followed has make the issue:
I working on remodeling my stations. After setting it up the new 2 Fuel-stations i dismantled all other stations. After this i put new trains on the new stations for the first fuel up. All Fuel Stations are now full and then the error occurs. I think another train would make an refuel and can't access the station because it whas blocked.

I need the error screen to be able to help you. Full station should not be an issue because my mod does not track train limit nor does anything to them.

I think it could be closed. LTN has made an Update where it fixes an crash with this symptoms. Maybe its done now.

I will close this for now until the error can be reproduced.