I get "DB Error: connect failed" when I go to that URL. I'm assuming that's just a temporary problem. Is this one of those paid to click or survey completion websites? If it is, they may seem like they give you free money, but generally, you spend a lot more time earning your money than you would with a real job. They can be nice if you have some free time and just want to earn a little extra money, however.
Edit: error is gone.
Edit2: error returned when I tried to register.
I just tried logging in and that happen idk why