If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: sk4cihqKxAi8wCoYnhPFf1ej3vyNNDnxxPoCyeZLadma1n8M4mGCznxKTKUz9hAAQapXcSLm6qkQssSBJbv7zkTC7yqXKczyGCCxWtnxhz5E6CEUfszZY8akpLj6eRkYajion9tpg9gLGEhEKh7gX3o7PHM7X9PFF3tG8wiJiBesATstuv1aPUL9CmHpCC8fHzG78TdE1FPXmS5xMFLsZ77AeA
You can also try to pass an automatic check but with no guarantee.