You first have to make a local script under replicated first and name the script "Intro". After creating the local script copy and paste the Intro.lua script in the local script you have made.

Welcome to the "Codex-Roblox" repository, home to the cutting-edge Roblox executor - Codex. Are you tired of experiencing lag and instability while enjoying your favorite Roblox games on low-end PCs?