Unblock website from AVG's list

Hi,

 

I hope I have this in the right category, if not please move to correct category.

I currently use your free version of your product and work for a company who's website/s are being blocked

I get this message when AVG web protection is enabled

"This site can’t be reached
xxxxxxxxx unexpectedly closed the connection.
Try:

Checking the connection
Checking the proxy and the firewall

ERR_CONNECTION_CLOSED"

When disabled I can see the websites fine

Can you help me find out why they are being blocked by your software and how I can resolve this, I need it unblocked for all users and not just me.

Regards,
Matthew Reilly