I'll show to you, First image I clicked on you're link and the message drive me crazy with problem (sorry this page are in french in a ridiculous little windows. Second image I clicked on "download" (Téléchargement, in french), this page drive me to the ridiculous red message with a character that looks like a kind of customs officer. I hate it
That means that it couldnt recognize the certificate. follow the procedure to get through. google drive has no viruses at all.