If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: sk4cihqKxAi8wCoYnt2HizFMWxQti2HMUSiG99De7yuJojVECv6cyAhn7eucErw3NsjQCKBzPbKPRDEuwZ8psspDvqUZoEwceBnmUMbR39WGrXAARsDWSpkQb17msEPc2dyteVS6mwWZJ5PByf6YvFEXrrTt6LV4hsbpJRUsYg4uHUCy77aVxVfXniCXboisyz7cGYSrGsndqetkuBwAPWZwjL
You can also try to pass an automatic check but with no guarantee.