Because it's outdated, and the author has been very inactive recently. If I were you, I'd wait for an entirely new mod that has the same concept to be released by a completely different author. But to be fair, you can clear cache and/or disable any potentially conflicting mods that could be causing issues with this one. Cheers!
the rework is going full-time DC2 is named Ibishu Avara/Senren Avara for US market EK, EG, EJ and EK Coupe was reworked heavily here are some photos
i started like 2 weeks ago lol when i was absent i also made a few mods that aren't public and i learned a lot about using blender, substance painter and jbeam