TownCraft Modpack 1.18.2–1.20.1

You need to increase the ram allotment in your launcher for the pack to over 7 gigs for TownCraft for 1.12.2, and 9-10 gigs for TownCraft for 1.16.5 and beyond.

With new versions of forge you don't need to remove clientside mods because it automatically does not run them.