This mod does not work with the current version of Strive(v1.0d). As it says in the title and in top post, this will only work for v0.5.25, so he has provided a copy in another topic(https://itch.io/t/975848/strive-v525-arics-expansion-v097-pre-merged). However, installation of this mod is rather complex and not recommended for those having trouble with simpler mods.