NEVER should have bought AVG...it's garbage

Suddenly having problems accessing everyday internet sites due to "security certificates" being expired.  I can disable Online Shield and all is well.  What is the fix???  I'm one month into a 12 month service.

Hello Darryl,
We regret for the inconvenience caused. Could you please confirm whether you are getting this " Security certificates is expired " on particular website or all websites?
Could you please send the screenshot of your error messages so that we can assist further? Please click on the following link http://support.avg.com/SupportArticleView?urlname=How-to-create-a-screenshot  to send the screen shot.
Thank you.

Darryl, 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 Darryl,
We regret for the inconvenience caused. Could you please confirm whether you are getting this " Security certificates is expired " on particular website or all websites?
Could you please send the screenshot of your error messages so that we can assist further? Please click on the following link http://support.avg.com/SupportArticleView?urlname=How-to-create-a-screenshot  to send the screen shot.
Thank you.