Okay, well this is weird because the code appears to be trying to pull from the Linux build..? Which if you're on Android, and not using any apps like JoiPlay, doesn't make any sense.
All I can really suggest at this point is to make sure that you did in fact copy everything from:
Android/data/com.domain.corruptedkingdoms/saves
And that you're putting everything back into that exact folder, with no extra subfolders or nesting or anything going on.
Failing that, completely uninstalling the game (making sure to keep your old saves) and reinstalling it again might clear up whatever the issue is...
Sorry I can't be more help, but this is something happening on an engine level, not a game level, and my knowledge of the underlying Ren'py code is practically non-existent :P
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Huh. That's definitely weird. Well, all I did, when I had the previous phone, was back up the save files. Just the save files.
Actually, I think I found the reason for this mess...
Looking at the files where I backed them up, they are 0KB big. So something seems to have messed up when I uploaded them.
Guess I'll just have to start over 😅
I appreciate you trying to help, though!
Oof, yeah, the 0kb thing means they got corrupted during transfer somehow - that's a shame!
If you don't feel like starting again, you can jump into the CK Discord Server; there's a start-of-Act-Three pinned in the #game-chat channel :)