Hello, all save files are located in Android -> data -> g.w.ncrow -> files -> saves
I recommend using zarchiver and uninstall updates in file app or it just allows you to. If you have a PC/laptop connect your phone via USB and access the save files in that order and copy it. After you saved the files, paste the files exactly where you copied them and it'll work. This also works with other games. Hope this helps :)