This usually means you need OptiFine installed. Without it, the game cannot handle the advanced "Connected Textures" or high-resolution images often found in Fapcraft. Why Use Fapcraft?
: Click Open Pack Folder in the bottom left corner to open the correct directory on your computer. fapcraft texture pack install
"pack": "pack_format": 14, "description": "FapCraft — Cartoon HD textures (64x)" This usually means you need OptiFine installed
: Go to the Forge official site and download the 1.12.2 installer. fapcraft texture pack install