Sorry, you've viewed the quota of daily free videos for your IP address/profile (currently 4 videos per day + views earned from submitted/accepted videos from you). The counter is reset in 18 hours, 44 minutes.
You can increase your daily quota by uploading videos - or remove the quota for a period by supporting the site financially.
(if you haven't viewed 4 videos and you get this page then it's because either your internet provider shares IP addresses between their users or because you use a proxy server. Neither of these are things I can change or solve.)