In the last day or so when I try to open the site on my 'Droid phone a warning comes up

"There are problems with the security certificate for this site"

Options are Go back, View Certificate, Continue - I click continue and in I get.


If I view the cert it says "This certificate isn't from a trusted authority" I can click "View page info" which states Filipino UK Forum Address : https://www.w3counter.com/securetracker.js

Is this anything to be concerned about ?