For customer convenience, individual galleries within the same year are associated to the same access code. If you disassociate one gallery you will disassociate them all.
To correct: just add add the current year access code again to your account and like magic your images will reappear. If you need to request the access code do so using within your account and once received we will autoload your galleries back into your account.
To indicate your choice of yearbook gallery: Click on the Yearbook Gallery indicator located under your choice of galleries. This indicator will default to the Make up job as we will assume that you wanted new images.