Check the version format. If the version format in the version you’re using is less than the version format in the latest mine-imator default version (Mine-imator/data/minecraft/1.14.? as of this post) try reading the topic below and applying all the edits to the version file. (You can open the version file in any text editor, since it’s just json).
edit: useful qoutes:
Counter Theory: Illagers are just Villagers that have given up on whatever religion Villagers practice. Their skin is gray because lack of sunlight due to living in roofed forests.