let me play my games

i have owned mass effect 3 for many years. i have over 100 hours logged. today i launched my game and it says i need to enter a product key. which obviously i don't have since it was a digital download. i cleared cashe, i repaired game files, i closed the ea app and reopened it. i logged out and logged in. still i cannot play my game. please fix my account let me play my game and fix your app.