If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: 4wMBTC1zmF99ScB5UWLJTrBcKjzXeof68p6vujPAUFSyrxc7XceYmcKQmDvsxQM6uaw1S2oK4zQGoGwQZvbetictm5L3EhcAxAKevat9U891xqhGKDS4YXWcYzZzjMMbokVmJKkyMK4YWri5688EHQTySv
You can also try to pass an automatic check but with no guarantee.