I cannot purchase music on iTunes -- see screenshot and my comments

I am unable to purchase any music on iTunes. I am logged into my account. I have clicked on the iTunes store. I have added multiple options for payment methods. Regardless, every time I click on purchase, I see this screenshot (fyi, the red block is just my screenshot annotation to so my account user name doesn't appear). As you can see, it shows no button or way to proceed and complete the purchase. I've tried clicking on different albums, and this happens on all of them. This started a couple of weeks ago -- never had a problem purchasing albums on iTunes before. Any thoughts what might be causing this?

[Edited by Moderator]