If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: sk4cihqKxAi8wCoYnhPFDa23aKNxyWckucBKM2fKQLFYihJQZkkvjfbJxxB95o1C4d2jPbLKGzdEwaRj92A3ocaA1NaPJd7x6yCsiBygznp7skBnbEiwFhxcrkfStY8B3rZbnf6XfVzQbpqmKHAtht6shaPmEyRAHJwoPZhPdYp11sXDc5F7ZaNCkJFaEZ2vDCkEFfkPTW2MZtMewvYx4mrSJS
You can also try to pass an automatic check but with no guarantee.