Blocking of safe site

Hello Susan,
We are sorry that AVG is blocking websites in your PC and unable to access it. Please try to disable AVG Internet Security in your PC using this link http://avgread.me/1GnMD3N . If you are able to access the websites after disabling AVG, please share the screenshot so that we can assist you better.
To create a screenshot, please use this link http://avgread.me/1aZxsAV .
Thank you.

When trying to access certain sites (which I know are safe) AVG block them. How can I add these to a list to enable me to access the sites?

Susan, If applicable… For your info, just in case that you are unaware, you can post the screenshot here in your topic. Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions. 
AVG Guru

Hello Susan,
We are sorry that AVG is blocking websites in your PC and unable to access it. Please try to disable AVG Internet Security in your PC using this link http://avgread.me/1GnMD3N . If you are able to access the websites after disabling AVG, please share the screenshot so that we can assist you better.
To create a screenshot, please use this link http://avgread.me/1aZxsAV .
Thank you.