Recover unsaved drawings after a Crash

I just finished working on a background for a project that has taken several hours when the program crashed. I chose the “reopen” button and found that much of my work was lost. Is there a way to recover recent work that hasn’t been manually saved yet? Thank you! I am on a Mac OSX

It will be difficult to retrieve files that is not saved since all the files are in a cache until save. But you better contact support for more information.