If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: sk4cihqKxAi8wCoYnhPEfqwNhow82wYRoBLpDdtC3orUkrPjP1Xsf1kkr84PNUPTAVA4rNmvr33g24opDw64xbCHYTYt38t8xRZeCvyQnobrLEYin6CK9HJTn9Fyhir9YPM5VN3NQqT6iisHob6UXjcSpH1sLYRiHm3eKzAVmVrsV3CWPsqmAWois4bJ16xFKTc42aR3vDCmUBQwXLK8R7uYsG
You can also try to pass an automatic check but with no guarantee.