I was already aware of that problem, that's why I don't recommend putting it in existing saves or after you build space platforms
i saw, i didn't build anything in space yet, so i thought it was worth a shot!
would you like me to report it over at TFMG-thermal? Or are you on it? :D
For future reference, whatever mod name is on the top of the error, that's usually the one you should go to first.
In this case, polka created the configs to make TFMG thermal work, and the bug is my problem.
Anyway, fix will be up shortly.