I stand corrected. If you had the Play Pass version installed, that's what will show up under the store in Ant Colony. Once my subscription expired, it reverted to the default store and I was able to use this app.
Also, if you're having the issue in the post immediately before this, it's an easy fix. @Cyfer789 just install the app from Play Store once, uninstall it, and then install the modded version. Even just letting Play Store download a percentage of the app and then cancel before it install should be fine.