Cheats Disappeared N64

I click cheats and there is simply nothing there.

What do you mean?
Explain it, you can't just say they have disappeared unless they disappear off the face of the planet

I'm playing Conker's Bad Fur Day, I go into system, select cheats and there is no cheats there. It happend on Doom 64 as well.

Which emulator?

Project 64.

Maybe you haven't got cheats for the game

I do, they used to be there but now they are gone.

Sometimes you can enable or disable cheats

load up a new cheat database then.