Hi Charles,
We're glad to help you with this.
Upon checking your account, we see that you've an active subscription of AVG TuneUp, valid till 2020.2.15.
From your description, it seems that an older version of TuneUp is installed on your computer.
To ensure this, share us the screenshot of the message that you receive.
I have an AVG Tuneup subscription for 1year since January 2019.
Why do I keep receiving the message that my trial period has expired
Can you please resolve this problem once and for all
This is the screenshot I am receiving.
Thank you for the screenshot.
On checking your screenshot, we could see that you have an older version of AVG PC Tune Up.
Please uninstall the older version from the control panel and reinstall the new version from our official AVG website https://www.avg.com/en-us/download-thank-you.php?product=GSE-2019
Refer this article for uninstalling the program https://support.avg.com/SupportArticleView?urlname=Uninstall-AVG-software