"Sorry Because of its privacy settings, this video cannot be played here"

Greetings,

I’ve subscribed to GregMat since september, but I’ve just recently started the 1-month study plan. However, when I click on any video, I am prompted the following message “Sorry, Because of its privacy settings, this video cannot be played here

Does it has to do with any mistake on my end? I would really appreciate your response, since I need to start my studying

Can you try all the steps in this article?