You’re not telling what issue you are experiencing.
I’d suggest you to watch this video, which explains how to properly install ‘Menyoo’ for FiveM.
Since I bet you’re using this mostly for vehicles, I’m suggesting you to use vMenu by Vespura, which is created for FiveM. Menyoo is primarily created for singleplayer GTA V, not for FiveM. For ex. Menyoo will bug out due to the keybind being on F8, which also launches the server console in-game.