Messed up Signup.php

Hello!

I really need help! Our signup link is pretty messed up; devoid of any styling in Chrome. On Firefox, Safari and Opera, it is all good and well.
I have deactivated the plugins trying to find the cause but unable to do see it. We are using NEO Theme from Themeforest.

Please ..is there any help or idea that we can get from you?

Thank You!