It appears that you have not completed the installation of the mod.
- If you have not applied the mod through the game's mod system, then it is found in the main menu. Select the "AricsExpansion" mod, then press apply.
- If you have applied the mod in the game's mod system, then the folder path for the mod is probably incorrect. There are a few possibilities.
- You have renamed one or more of the mod's folders. The game expects a fairly specific path.
- You have the mod in too many or too few folders. Changing the depth, changes the path.
- You have selected a path for the mod folder in-game (even if it was not changed). There is currently a bug that causes errors when this path is selected.