Cant go in

Used to play ROBLOX. Decided to play again. Put in username and password. Heres where the trouble starts. It keeps asking me, "Are you a human?" It makes me write the two messages I see. Theres two things: One: the messages are usually too blurry to read. Two: every time I put them in, it asks me again, but with different messages. Want to play. Cant play. Fix if you want a higher rating, but until then, only the stars for you.

Mr. Narwhal 47 about ROBLOX