iOS 13 Connection not private

I am having this issue but only on certain Wifi connections. It does it to every site I try to go to including yahoo and google. The same thing happens on Chrome as well as Safari. The screen says" Your connection is not private" it then gives the options to go back to safety or there is an advanced button. If you hit the advanced button it tells you that the server cannot prove the site is the one you are trying to reach or its security certificate is not trusted. If you hit the proceed to google.com(unsafe) button it takes you back to the Your connection is not private screen.