Disc drive installation

I opened my disc drive to clean my rollers (watching the video you posted on YouTube 3 years ago) because my disc’s were not going in. When trying to put the metal disc drive back on, it won’t lay flat so I can’t get other parts screwed down. It doesn’t look like anything is in the way, do you have any tips? It’s almost like my rollers are the problem, even though they are both clipped in. Any help is appreciated. Thank you.