main engine crash

i keep repeatedly getting this issue (or a similar one) when either starting up tmodloader or playing it. I originally had recipe browser, thorium, convergence thorium + calamity, calamity, calamity vanities, and calamity music installed, and after the first day of playing, it wouldnt work at all because it wouldnt load thorium items. So i uninstalled thorium and convergence, and it worked for a little while, but now i cant play it at all again. im not sure what to do, or what is wrong.