PODS CMS question

Hi! I am using the Onstage theme. I can’t get the Video Gallery tab to work. The plugin I installed for the videos (as instructed by the creator of the theme is: Pods CMS.) When I go to my website I get a message and a link to the parent directory. I have the videos and plug-in options on my wordpress dashboard and I am able to upload the links, but nothing happens. Creating a page just makes another option in my websites navigation bar and then I have to delete the old one. I am new to all of this, so I am still learning. What do I do?

Also, how do I upload videos and embed them in the theme without a link to another website? Thanks!