I know this is the wrong site, but sudokucraving.com is broken. It won't give any more hard or medium puzzles. And I haven't been able to get any response on solving the problem. Is anyone out there?

What do you mean by not giving hard or medium? The games are rated by the players so they are whatever players rate them as. If you're talking about the options under "New Game" then those are the games that you haven't solved. If it doesn't give you any there then that means you've solved them all.

Did that help?