Maybe you can find the error on this site if you havent seen it already. Scroll down to the bottom of the page and the error should give you a number that looks like (44::36) or something and search for that number.
if its giving you error messages than maybe this site can help it tells you what all the error messages in after effects mean or at least most of them.
you should check this site out it tells you what all the errors in after effects mean or at least most of them. Just scroll down the page till you find your error (44::53)
Sometimes that happens to me and i can’t figure it out either. Usually i just save the project and restart my comp open the project back up and try it again and it renders just fine. So if you havent tried that already maybe give that a shot.