Is Avast blocking me from watching a Webinar Recording

Hi Folks,
I recently started a new masterclass with my online University, the class has a secure website and forum, in this forum page is a link to the publication of a Webinar
The page immediately shows the following text before I have even clicked on the link, its there when I log in,

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

Is this a result of the Avast Security or a result of the Link?

cheers
David

Provide details…