@xLightJupiterx If you haven't, power your console down completely, unplug it and let it sit for a minute. Plug it back in and then relaunch Sims. If you are receiving an error code at all please let me know.
Deleted saves are something that comes up on this forum often enough for XBox users. If you can't load the backup from the cloud, I do not believe they can be recovered. If you continue to have issues with saving, sometimes you need to delete items from your gallery to make room for more data. Or you may need to uninstall and reinstall the game to fix any corrupted game files.