i cannot play at all becaue of this

I was just playing along after logging in, and my game as soon as i got in to single player i got this:
EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ff92514d5d3, pid=4248, tid=6076.
now when i log in to multiplayer i have narrowed it down to me and entities and loading new chunks. plz help