AJAX Register Error click on Register

Hello sakic.net!

I bought the AJAX Register Module and installed it on my Joomla 2.5.1 installation without any Problems.
But it does not work on my Frontend! (Screen) After i am clicking on the Registration Button i get this Message: „The words you typed did not match the ones displayed. Please try again.“ (See Screenshots)

My Site:
www.jakober-musi.at/component/users/?view=registration

Greetings from the Tyrol
Herbert

Please send the admin password and FTP info and I will check.

Thank you! I sent you an Email....

Greetings
Herbert (keimling)

Hello Saka!
Did you get my email?

Yours sincerely,
Herbert

No. Can you send again using the contact form please?
www.sakic.net/contact/

Ok, i used the contact form and sent you the mail again...

Thanks
Herbert