Causes:
Fix: Remove all other mods, add only Fapcraft + required libraries, then reintroduce mods one by one. File name- Fapcraft-Mod-v1.0-Forge-1.12.2.jar
Before touching the .jar file, set up your environment correctly: Causes:
To use the Fapcraft Mod, players need to follow a series of steps: Fix: Remove all other mods, add only Fapcraft