Mitsubishi Outlander Sport Engine Not Running

My Battery Kept Draining Over A 3-day Period, I Kept Having To Get It Jumped Off, So I Went To Autozone To Have Them Check The Battery...

No Power To The Ignition. Tried Checking Battery,fuses, Put Fast Key In Glove Box As Suggested. Door Locks Have Power. No Dashboard Lights...

Engine Stalled While Driving And Asc System Service Required Indicator Appeared On Display Screen, Car Will Not Start Now. What Do I Do?