Putting the Case back on a LG GH22L DVD Writer

[HelloWorld]

New at Electronics repair. trying to fix a few household items that haven't been functioning properly. I managed to open and clean my old DVD Writer which had been giving me problems (not able to read dvd data disc, etc) and it appears to have improved performance. I however for the life of me cannot figure out how to put the case back on. I was wondering if any of you fine folks had any suggestions. Thank you in advance.

 

[HelloWorld]

Found the solution. A small piece had come off in the inside of case creating a imbalance. Removed the adjoining piece and then it fit.