If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: sk4cihqKxAi8wCoYnsyu9CJgWpuHZvYmaVMToLfscDS8MWhJry2KTzfD1P7UWHRqgbpDbDKebyWLRqr5GzkLdd4dCHqnM2hR8kwKVW3jmWjd4bcXanKnhnijTymcAwY1YtLTuh7FEbwZ2NWBfoQPCzYmmF2P547hmZJvvVasiHhbmFZTe3geo7dpv1sVveCMZS3B8mcsUoNy2oPKuZyfJZ41VG
You can also try to pass an automatic check but with no guarantee.