AVG Antivirus Update failed in MAC

Phuntsok, Please click on the following link (http://avgclick.me/AVGtechnical) and fill out your details, select as Mac OS then the name of AVG Program that you installed in your system and in description please completely explain about your issue and finally click on Email option. The AVG team will reply back to you via email with a resolution.
AVG Guru

I have MAC PC, which I want to connect to my existing Zen Network.
I am not able to connect using the invitation code or with admin.
It gives me an error "Login Failed. Please try again". 
I have even tried to update but its not working. I turned off all the firewall. Still will not work.

Need help

Phuntsok, Please click on the following link (http://avgclick.me/AVGtechnical) and fill out your details, select as Mac OS then the name of AVG Program that you installed in your system and in description please completely explain about your issue and finally click on Email option. The AVG team will reply back to you via email with a resolution.
AVG Guru