I think that is not supposed to happen after updating the game?
Viewing post in Corrupted Kingdoms (NSFW 18+) comments
Looks like the download got corrupted, likely due to a momentary instability in your internet provider. I'd suggest re-downloading it, that should solve the problem.
If you're on Android, be sure to back up your saves first as you may need to delete the game and reinstall it.
Your saves are located at: Android/data/com.domain.corruptedkingdoms/saves
NOTE: If you're running Android 11+ then Google has hidden your data folder. To access it you need to connect your phone to your PC with a USB cable or use an app like Solid Explorer or X-Plore to give you access to the folder again.
Hope that helps!