System extension blocked was working before system upgrade

Greetings,
We'd be glad to help.
Are you facing issues with the paid version of AVG Internet Security on your Mac? If yes, please make sure that you followed the steps in this article and let us know the outcome.
If your concern is different, please do elaborate it and mention the program name.
Awaiting your reply!

A program tried to load new system extension(s) signed by “AVG Technologies CZ, s.r.o.”.  If you want to enable these extensions, open Security & Privacy System Preferences.  

I am lost and can't get them to load

User-added image

Carl, click the lock icon (left bottom corner) of the window to unlock the features. This will give you an option to allow the extension. 
Let us know the outcome.

We are sorry to hear this Carl.

Please accept our apologies for the inconvenience caused.

We request you to uninstall the program and reinstall it again.

Refer this article for uninstallation https://support.avg.com/SupportArticleView?urlname=How-to-uninstall-AVG-AntiVirus-for-Mac

Refer this article for reinstallation https://support.avg.com/SupportArticleView?urlname=How-to-download-and-install-AVG-AntiVirus-for-Mac

Keep us posted.

Have followed all the steps many times. There is no allow to click on or code in script. Seems to be an issue between 10-13 Apple and AVG

free version, have tried to do what the artical mentions ,but have no allow to click on or way to get the 5 system extension blocked boxes off the screen unless I delete AVG and restart my Mac

Carl, have you followed the steps mentioned above?

Greetings,
We'd be glad to help.
Are you facing issues with the paid version of AVG Internet Security on your Mac? If yes, please make sure that you followed the steps in this article and let us know the outcome.
If your concern is different, please do elaborate it and mention the program name.
Awaiting your reply!

Carl, we are sorry to hear this.

We have offered our additional support through email. Please check for the email and connect back to us as soon as possible.

Computer not protected or email not protected in basic protection