Hello SifuOpman & ELVIS_4_TCB,
You could try the following to recover your save data:
- Disconnect your Xbox One from the internet
- Launch the game
- Play the first mission in the game, let it save then close the game and return to the dashboard
- Connect your Xbox One to the internet
- Launch the game again and if a cloud save is detected you will prompted to use the local save or cloud save, select the cloud save and your previous save may be recovered
However if these steps do not work then unfortunately your save data is lost and cannot be recovered.
Thank you