Reinstall the APK and move your backup files back into the Android/data/ folder. Pro Tips for Preventing Future Save Errors
If the error only occurs when you access FIFA 14 Ultimate Team, it might be an authentication issue. save operation could not be completed fifa 14 android
Transfer this "working" folder to your phone's Android/data directory. Solution 4: Manage In-Game Save Slots Reinstall the APK and move your backup files
Here are the six most common culprits: