If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: sk4cihqKxAi8wCoYnhPFCZuHDawRM9VuthfgSZ5QQEj11uowmMexrZ9KSqKrcSDfvyHukvbifPnoNAcn9Cs4aXc8KeBsE15omxN8E3R2cCTS4jEfUyewhhnwfiVj6U8gVAUAZpTrRgTgTzg11Ym3T4VB94tD98covgoUBoipFweYWAUiEEWNtQ9f4HPae9AUZXf4xMkBGVcGbAXHhBUB5dfxog
You can also try to pass an automatic check but with no guarantee.