You have almost made it...
Now you just need to confirm your e-mail address
Check your e-mail inbox
Visit the mailbox of the e-mail you used to register.(Please also check your spam folder if you cannot find the e-mail).
Open the confirmation email
Find my e-mail with the subject "Please confirm directly..." and the sender Matthias Bernhardt.
Click on the confirmation link
Finally, click on the confirmation link in the e-mailandyou're done! You will now receive all accesses in a separate e-mail.