Data Loss: My file that was last edited on feb 05 is missing my work due to an internal overwrite

The feb 05 file is now displaying a graphic from another file of mine that I worked on from march 05. The feb 05 file still states it was lasted edited of feb 05 which is when my orginal work (now lost) was done. The graphic that is now in that file did not exist at that time since I made it on march 5th when I added into another file.

My orginal work which is a wedding program card that I need to get printed today is now lost and overwritten by your system. I did check the file version history to see if the overwrite was logged there but it wasnt and history past 30 days is not saved.

I assumed the cloud backed software would save my work if I hadnt come back to it in 1.5 months for when I needed to access it but no, now I have to remake my program card 2 weeks out from my wedding. 

Im using desktop web from a Mac
repro by going to my files and seeing the feb 05 file

expected result: see my wedding program, actual result: see white Illustrations of a surfboard on a white background 

I would be valuable to me to not experience data loss