This version of the addon is now broken and I no longer have time to mess with maintaining it. Please refer to https://www.curseforge.com/wow/addons/ksk-wotlk-p2 to continue using KSK.
All credit goes to Cruciformer and his addon https://www.curseforge.com/wow/addons/ksk-classic/files. He stopped making updates to his addon in December 2021 and has not been heard from since, despite requests to update the addon for WotLK Classic. This project is a modified version that allows the addon to be used in WotLK. If Cruciformer updates his addon with a WotLK update, this version should be dropped in favor of his updated version.