If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: 4u7WAAhci5fmoBmRMcDqSTCVPRZ6xrSpCuqBbeGJ6JYMzGWwfRyfp7VpH5s7m1pxHsKMxB6QeUGxmQHqNaoVeXnSyuQaSehRWiqx3xU6c463mVVyrfQQN7uuPtiuTuDUivKZdX5F8p3TfX3xspvBcWpS2
You can also try to pass an automatic check but with no guarantee.