Allowed websites

When selecting the various websites that I am prepared to allow there is a button to the right which says ADD.  When you "press" this it then says "Invalid URL".  What does this mean and why doesn't it ackowledge that I have selected websites to allow? .

Hi Nigel,

We're sorry to hear that.
If you wish to exclude/allow some websites from being scanned, please refer to this article & add those websites to the AVG exception list.
Let us know if the issue persists while adding the websites to the exceptions.