If the Butterfly-Click-Mod-Forge-1.8.9.jar file is not working, try these fixes:
Solution: Check your mouse polling rate. The mod works best with mice set to 500Hz or 1000Hz polling. If your mouse is at 125Hz, the game will still miss clicks. File name- Butterfly-Click-Mod-Forge-1.8.9.jar
Before using the mod, you must have: