Having issues with creating a sign-up page on multisite

Dear Sir, Madam,

I am a newby here and I looged for some help topics but I couldn't find the answer.
In the network settings I enabled the registration form but when I go to "https://blogger4u.com/wp-signup.php" I do not see a sign-up form. What am I doing wrong?

Many thanks in advaced.

Gr. Jeroen,