If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: 4CU6bvFHxiJet8sMzxRvddoLhF2EH8cdmpUhiC4qpB5TQspqFZxAPjzxxRMsuhvaqksER1j7P3sKffKkeGppaZyQyWprk5VHtMkJXQKWrMWh7VtCqUJeHdGzioWD1FPJMETHksaTUEJ31nU9ACi4qLj866Jz
You can also try to pass an automatic check but with no guarantee.