Adobe After effects keeps Crashing

Hi as the title suggests After effects keeps crashing

I was working on a flow edit which involved time remapping i wanted to prerender it(play back so the bar above is green)

then as it finished i wanted to play it when it started to randomly played the clips on each other.

Afterwards it started autosaving and then crashed

it has now crashed over 20 times in the last 2 hours

this is the error it gave me:

(i am using adobe after effects cc 2019)