You could delete the history/cookies on your local system and try again.
You might just have to wait until they fix their registration page so you can browse without being treated as a guest.Change website reached max views?Maybe use a proxy since it appears that sites tracks you by your IP.Change website reached max views?this sounds like the website has used up its traffic quota on the server. But this could be a error on the user side not server side. Close your browser and re-open the page to clear your session. If this does not work then clear your cookies and restart your browser if this still dont work its deffo a server side error.
Hope this helps!
-Phil