Easy Photo Scan "Cannot find a driver..."

I just purchased an Epson XP-640 all in one. I ran the setup on the included DVD, but when I try and run Easy Photo Scan, I receive the error:

View attachment 789

I also receive this error when trying to run Event Manager:

View attachment 790


I can print and scan using Epson Scan 2, so I know the printer/scanner do work.

Any ideas?