You're doing the Fantasmic Dining Package, but you have no ADR's for it yet??? Um....I'd first check to see if there's ANY availability for ANY of the restaurants on the day(s) you are planning for DHS. These packages generally go incredibly fast at the 180 day mark.
I am going the first week of July, originally booked H & V, with all the bad reviews I changed it to Brown Derby, just last night and it was available as was MM.