I can't hear the audio in The Academy

I am a brand new member. I signed up for the lesson on Upfront Academy and can hear the introductory video with Jenny McKinnen. However, when I go to the first lesson the audio does not play at all. The video works just fine there's but theres no sound with the video. Also, I tried the online chat and entering a ticket but the site won't let me unless there's a website, but every url I enter is rejected. The only place I can ask this question is here.