Hmm, this appears to be an error caused by the Dea Dia System mod, see related mod portal discussion.
While I'm not seeing any pending fixes on the github, as mentioned by one of the other users, I did check the Discord, where the mod author mentioned having an update ready to test, but had to reset their PC due to other issues and are still setting everything back up. Their last ETA as of today was "1-2 more days"
If you wanted to continue playing, and haven't reached the space era yet (or if you have already unlocked space travel and completed Muluna), then you might be able to disable that mod as well as this one, and then re-enable both when it updates. I personally can't fix the error from my side, and I don't want to release an update that removes that mod, only to put it back in later.
