Please Enter Name error

[endrieconomi]

Hello,
I have a problem with the form of jcomments.
Every time i want to post a comment it says: Please enter your name.
I have disabled the System - Mootools Upgrade but still doesn't works

This is the link:

http://www.welovealbania.com/Argetim/nje-shqiptare-65-vjecare-hi-tech.html

Thanks in advance.
Endri