I created a fake signup to see how the process would be for my customer. All is well, except that I get a red error box (text is black on red...should be white for readability) asking for the Membership Type. However, the membership type box is completely empty! There's nothing to choose from or write in. I've searched through the admin section and searched "Membership Type" but cannot find info on how to fix this problem. This stops the signup process, so it needs to be fixed. Any suggestions?