I use hi5 website and everytime i try to create a link on the page to get in it denies it.?

Everytime I try to create a link to get in it denies it.

I use hi5 website and everytime i try to create a link on the page to get in it denies it.?
The custom URL has to be unique, and with millions of other users on the site with custom URLs, you need to be creative. Chances are, you are typing in a link someone else already has. Try adding your birthday to the end of a word, or substitute numbers for letters.

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