Activate moviesanywhere process issue

Hi there I recently purchased some blurays from wallmart. And the cover stated that I can play these movies anywhere with the help of moviesanywhere. I tried playing those on my uncle's tv with moviesnaywhere app. But I was getting error everytime I tried playing those movies. Then I googled and found that I have to go to moviesanywhere.com/activate for playing movies on my uncle's tv. You can this post for help with such issue.