How to use injector:
Step 1. Load up your game and the injector.
Step 2. Attach your game ( I recommend using ccapi)
Step 3. Start a game
Step 4. Inject your menu
Step 5. Back out of the game.
Step 6. When you load into a game, you have the mod menu.
You will have to use ccapi 2.60 rev7 (For CEX)
Disable your 4.78 spoofer and download version 2.60 rev7. Remember, this is only if you're on CEX
Then enable your spoofer again and, should work! That's what I'm doing.
Hope this helped!