I can't change my sig

I tried several combinations and uploaded from 2 different hosting sites, but all I get when I preview signature is a white screen with this written at the top:

I even tried making the site an exception on my new firewall, just in case. Nothing worked. Looks like I'm stuck with that pelican a while longer. What's the problem?

 

It works here, but not in the sig box.

edit: never mind, thanks Scik.