I am trying to check all pets into the Lakeview Resort, but it keeps saying "Oh No! One of your pets is already in the resort!" when I have no pets in the resort. I would like some help with this please.

edit: It also won't allow me to check my pets into the resort, other than 1 of them.

edit again: it could be i placed them in there earlier and I forgot. -kicks self in the face-