koto

So I updated my modpack when I learned I dont necessarily need to have x KSP version for a Y mod to work. After updating the mods, adding some continuations of them and updating the game everything pretty much went sailing smooth my save file did not corrupt, i did some test flies and everything was good. Until i made a SSTO that just... catches on fire Im gonna be honest one of the main reasons that I play KSP is because the creativity liberty you have with the spacecrafts. So my things getting on fire is a bit... annoying I honestly want to get rid of this fire mechanic Im on 1.12.1 KSP I'll leave some photos of the SSTO and my mod list managed in CKAN

Quick question is there a "Stail" class crew cabin? I want to make a SSTO the humpback class is a bit too big but it does have a crew cabin for more kerbals. The stail class is almost perfect it has a lab modules and has a nice size but i cant find crew cabins.