If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: 4u1VMaFAXhSHKb685MUCASqMXKTUQye7uJZc4r55wihj3kpiWgKgsw44rpNBovX2S8i5DGgRDfnsXe6kce99JPw3SwFdhBwWPRggEWC84Kee5JJFmADZQcaFbPxMHsNexLuVn6Xstb3AYrPhtNt48kMki
You can also try to pass an automatic check but with no guarantee.