If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: sk4cihqKxAi8wCoYnhPEwntL4kthCnCb8Jssj9pe3PHEqXAu7CgVyM4vCC9od2eTSyMrYQ3rJXaTRba1JmhcW7F6FNZMq38NAicLrKN2DmrBNDscDWbCLQnGfbNJyzDZothEBPHoAQWgr7TvddygHeXNE4SfNWn7vVAbtVYygYDGD84zGBMYtLTpa5cMLr6eN3JH7boP1THfrnsdd53r4RgyVG
You can also try to pass an automatic check but with no guarantee.