Is the old version save file still compatible with this new version cause mine caused an error and erased all my data
Yes. If a save doesn't work, try loading a quicksave in the Q section of the loading screen.It is always best to keep a save when Celica wakes up to ensure maximum compatibility between each game version.
Do you have a max level save cause mine is broken and keeps sending errors, my level was 80 at that time
