Kman

I was going to play a modpack I made, I had played it for a LONG time before this happened, and when I go to load up forge it sends out an error message(see image) and I also am posting the crash report. If anyone could help me figure out what this means that would be amazing. Crash Message/Error Message Crash Report Please help me! I really want to continue playing forge. (1.12.2-forge-14.23.5.2845)