Hi, I have 3 gb remaining on my icloud backup. I keep getting the Not enough storage problem saying not enoug icloud storage avaialble. I am only backing up contacts, calendars, notes and wallet on iCloud settings menu. Photos & mail are checked to "off" on icloud. I have icloud drive on with 4 apps that take up no space(deliveries, soulver, textexpander, and flightrack). Why is this happening?