If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: sk4cihqKxAi8wCoYnhPEjw1qPyqAT5EkNNet9Mrk3vrvMuB18L2kFwoMkawCmb8SSQiYB3aAupGzf22g3Zy5ZHkoZtjkNoAKreqp4N7CeLtoiFKzgmbkyq8N5YgvNVY7y41ZQMQpARokb1fnHhoAFxr8316MMDvsTqJ1F3dHFuZYjHrgN81SpaejH6kTWvARsURo9bghWkmDoddkhU22tAMZKU
You can also try to pass an automatic check but with no guarantee.