captcha not visible for creating a bug account

Paul Dufresne <[email protected]>
Newsgroups gmane.linux.distributions.gobo.general
Message-ID <CAGQ-=q3boq=eUxbemgPgjd=DTX4Q=E0msps-KB82965kh7O0Cw@mail.gmail.com> 
Hi, I am writing this under Firefox 28 in Gobolinux.
On:
http://bugs.gobolinux.org/signup_page.php
"visual captcha" is written where the visual captcha should be.

and if I ignore it I get by clicking Signup button:
APPLICATION ERROR #1904

Confirmation hash does not match. Please retry.
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