Cheat not working nh help

[Meloonx]

I was playing a game and wanted infinite money so after a while of searching I found one so I put it in the proper places and the cheat was in the cheat menu but activating it isn't doing anything, is there something wrong with the code itself
_C1 999999999CC
_L 0x212C4F08 0x3B9AC9FF
This is the only code out there is there a way to fix it