Adobe Media Encoder Edit Render

Hey y'all! So I have this reoccurring problem. When I try to render one of my edits through media encoder it goes through the entire edit and stops just before it gets to the end and it freezes for hours. This edit is only 7 seconds long and it has taken 4 hours to render, stuck at the end. My edits usually take hours to render but none are above 20 seconds. Someone please help because I have to leave my computer on every night to get these edits to render. And I don't know why this edit would stop at the end and freeze??