AVG will not start

John,

You can perform repair installation http://support.avg.com/SupportArticleView?urlname=How-to-repair-AVG of AVG Internet Security to check with the issue.

Provide us the screenshot https://support.avg.com/SupportArticleView?l=en&urlName=How-to-create-a-screenshot&supportType=home of the error message you received to check and assist you further.

Recently, you have been charged for auto renewal of AVG Internet Security (1 computer) but you already have active AVG Internet Security - Unlimited (1 year subscription) valid till 2019.1.7.

In such case, you can get refund for this latest transactions. Shall we proceed with the refund request?

Error message JsonRpcServer.dll is missing

John,

You can perform repair installation http://support.avg.com/SupportArticleView?urlname=How-to-repair-AVG of AVG Internet Security to check with the issue.

Provide us the screenshot https://support.avg.com/SupportArticleView?l=en&urlName=How-to-create-a-screenshot&supportType=home of the error message you received to check and assist you further.

Recently, you have been charged for auto renewal of AVG Internet Security (1 computer) but you already have active AVG Internet Security - Unlimited (1 year subscription) valid till 2019.1.7.

In such case, you can get refund for this latest transactions. Shall we proceed with the refund request?

John, 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