Youtube tells me the video is "restricted", and I need a google apps account

When I go to play the videos in the workout program, the workout screen change to a fuzzy screen and youtube's messge says the video is restricted, and to try logging in with a google apps account.

The video I'm trying to play is this one:

https://www.fitnessblender.com/videos/day-2-fitness-blenders-5-day-workout-challenge-to-burn-fat-and-build-lean-muscle

it's part of the program I purchased, so I'm feeling pretty frustrated. I've never had this problem before, but it appears to be some kind of setting in my Google account, not with Fitness blender?