TOPIC: Getting Kicked Back to 'Event Registration' Page

I 'published' events in the backend of our site. When I go to the frontend of our site, I can see the events on the "Event Registration" page & the 'Register' buttons. However, when I attempt to register, I can either only enter 2 members info, or none, and I get kicked-back to the 'Event Registration' page. I can't get past this. I've tested in IE, Firefox, and Chrome - same result.

Has anyone else had this problem? Thanks.