did you find the link? (Discord, a specific forum, or a YouTube description?) Have you already downloaded or executed any files from it?
: Be wary of .exe , .bat , or .scr files inside an archive that should only contain game data. Download File Modpack Autumn 2021.rar
: The .rar archive usually contains an .exe or .scr file disguised as a game installer or "mod loader." did you find the link