While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
Note: This feature may not be available in some browsers.
I had the same problem, same error message...its with the link from the gunnutz banner. Click on dealer network, then the forum for Dave's tactical and click on that link...works for me. Also Google DS Tactical and you can get to their website.
When we programmed their banner, their site was entirely encrypted. Our guess is that at one point, they changed their site and only started encrypting in the check out process.
We have amended the banner link so it is no longer asking for the encryption that does not exist.