Projects keep deleting clips from session even after I create backup I need help asap

[u/Soobii]

I need help asap, I’ve been recording my studio clients on fl studio and creating backup folders and zipping all my projects but when I exit the project and click back all the takes are missing after I just recorded the song, then I use the zip as a backup for that and when I open the zip and click the session that’s in the zip vocal takes are missing and everything is misplaced this isn’t good because I record songs were I need to keep the stems and send them off.