Deleted qso after look up

Up to date ver as of 10-23-21
Did look up all option and lost 50 or so qso. I have the original adif saved as a back up.

What operating system and version are you using. Also, if you can remember, what call did you do a lookup on?

THanks for reply. I am windows 10 on latest version of hamrs.
I put it on qrz look up because my grids were not showing up for my qsos then once I did that they deleted after the look up. The call that I looked up first where this happend, I have no idea besides he/she was in the USA.