VPN connection failure

Hello Geoffrey.
Thank you for contacting AVG Community Support.
We apologize for the inconvenience caused to you.
We certainly check and help you.
Please help us with a screenshot of the error to check and help you further.
Here is the link which has the steps to take a screenshot :
| AVG (https://support.avg.com/SupportArticleView?l=en&urlName=AVG-Create-screenshot&q=How+to+create+a+screenshot&supportType=home)
Aslo, please let us know your Mac OS version for further help.
Thank you.

Hello Geoffrey.
Thank you for contacting AVG Community Support.
We apologize for the inconvenience caused to you.
We certainly check and help you.
Please help us with a screenshot of the error to check and help you further.
Here is the link which has the steps to take a screenshot :
| AVG (https://support.avg.com/SupportArticleView?l=en&urlName=AVG-Create-screenshot&q=How+to+create+a+screenshot&supportType=home)
Aslo, please let us know your Mac OS version for further help.
Thank you.

I keep on receiving the message 'VPN Connection Could not validate the server certificate'
Can you please help me.
Many thanks.