We'll certainly look into this and help you. As we're unable to access the image/screenshot you've shared, please share us the screenshot again, so that we can check & help you accordingly. You can post the screenshot here in your topic. Click on Answer & then click on the Image [mountain symbol] & follow the instructions. Thanks in advance!
Hello Falling, Thank you for writing back to us. Please submit the URL to our developers for analysis. Click this link to submit the form. Our developers will check and get back to you as soon as possible.
Until then you can add this website to the Exceptions. AVG >> Menu >> Settings >> General >> Exceptions
Thank you for sharing us the screenshot. Please clarify whether you receive this notification while accessing a specific website or randomly while using Brave browser.