I think you are in the wrong folder. Are you sure you followed the path exactly?
Edit: Ah, you're on android...... Yeah it's in a different path on android compared to windows of course. Try here: Android/data/com.AnduoGames.ThirdCrisis/files
Can't figure out how to access the files because I'm an idiot, but a recent re download said that "the package was corrupted" I tried again, and got the same error. Hope this helps! I see someone above is having similar Android issues.