My backups won't load - Sage 50 Pro 2019

Hi, I have Sage 50 Pro 2019 on a PC at our office.  Since Covid 19 and I'm now working at home, we decided to move it to a laptop that I could travel with.  Our IT person downloaded the Sage on the laptop, but my backup's won't load.

I tried loading them on another laptop that has Sage Pro 2020 on it and they load fine.   But I need them to load on my other laptop.

Do you have any suggestions to try?

Thank you.