AVG not responding

My AVG is not  working.  Pop-up says, "UI failed to load, This is really embarrassing.  AV service is not responding."  Then there is an option to exit or re-start service.  I clicked re-start, and Yes to allow AVG to make changes to this device.  Then screen just goes away, and there is still no AVG service…  Yes, my certificate is up to date.

Hello, Anne.
I apologize for the inconvenience this may have caused to you. Please click on this link http://support.avg.com/SupportArticleView?urlname=How-to-resolve-an-issue-when-AVG-shows-the-UI-Failed-to-load-error for troubleshooting steps to resolve this issue.

Hello, Anne.
I apologize for the inconvenience this may have caused to you. Please click on this link http://support.avg.com/SupportArticleView?urlname=How-to-resolve-an-issue-when-AVG-shows-the-UI-Failed-to-load-error for troubleshooting steps to resolve this issue.