Most mods are incompatible with the Steam or Rockstar Launcher versions unless they are downgraded to 1.0 . Essential Tools:

Designed to work with the original PC version of GTA San Andreas (v1.0), often requiring a Mod Loader for easy installation. Installation Requirements

To properly run this or similar remaster mods in 2021/2022, you typically need:

To provide more specific help, would you like a to the 2021 Insanity CJ mod or a step-by-step installation guide for your specific version of the game? I Remastered GTA San Andreas With 99 Mods!