The problem with the registration on the site

[Nasdomlan]

Help please, there is a registration page , but for some reason, issues that registration has passed, but the account is not created.
[PHP] <?php session_start(); /* Регистрация аккаунта Авто - Pastebin.com page where I enter the data.
[PHP] <?php session_start(); /* Создание аккаунта Автор - th - Pastebin.com page handler
At the same time sends a letter to the Mail...
I guess I do not need this one)) And if all will be easier to solve)
Site source

[MentaL]