Atheros_

So I was trying to get into 1.12.2 modded in order to test somethings for a server im part of, but my game decided to crash instead, while loading everything seemed right but then out of nowhere everything closed and a error message prompted telling me it crashed due to an unexpected error (IndexOutOfBounds). Didn't had this issue yesterday nor days prior until right now, I was able to play normally but now I can't play modded, vanilla plays fine btw. I've attached the crash report and im gonna leave my pc specs down: Intel core i7-4510U CPU@ 2.00GHz 2.60GHz RAM 8.00GB crash-2019-03-22_12.38.22-client.txt