Is the store in the slave guild right at the start? If yes i cant fix it
Viewing post in Leo's mod for Strive v1.0
If you go into the slave guild you should see options for shop and charity scheme that are not in the base game.
Have you got any errors reported in the 'godot engine editor' screen that launches at the same time as Strive? Are you sure you started from a clean installation? Have you managed to get other mods working?