"Failed to retrieve save data!"

Repairing the game should fix the issue. To do this

1. Select the My Games in Origin.
2. Right-click your game tile.
3. Select "Repair Game."

If repairing didn't work, often what most people do is wait out the problem and, weirdly enough, it resolves itself. Unfortunately, waiting out the problem does take approximately one day - one full week. Waiting may sound like a dumb solution at the very least, but in the past, waiting has always solved this problem....just be patient.