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.
Also, have you checked to see if your autosaves are still there? (On the "Load" page, click on the "A" to the left of the page numbers)