If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: sk4cihqKxAi8wCoYo1uVCAQFqCTU7SYRdx3xthei6R6jAeQfedmRw78Y3bGHpWwLvQmEGXD8Q64vv2J3zuGc42LJ2Twyn7aoW4rk9GeRhDDt9YMwE2LafUvgpPQN8L763D629Mhz6ZGPjtUESM6hRQ2nPjE66MA94TB1E58b1cQRjnzj9wan4FJKJ9rWQC64iwDiXHzxxLEu3ZDsVSw13jSMsL
You can also try to pass an automatic check but with no guarantee.