...we're not sure how to say this, but it seems like something didn't work out - it looks like you went to PayPal to finish up registration, but maybe you changed your mind...or something went wrong. Maybe the e-donkey* (electronic donkey) that was supposed to cart your info from PayPal back to us got tired and gave up. Or maybe it was space aliens. Can't trust 'em - always making circles in our corn and stuff.
Anyway, if you're thinking something like "I'm pretty sure that PayPal thing and all actually worked," then send us a note and we'll see if we can verify that. Otherwise, you probably need to try your registration again...and if you changed your mind at the last minute, maybe you have a question or concern about the event...so contact us and we'll see if we can help.
*There's no such thing as e-donkeys. As far as you know.