1. When it says "List Full" either ur frend list is full, or ur item list is full (only hold 30 items im sure), or ur treat list is full (only 28 treats) so do sumtin bout that and it shud work
2.Keep pressing A for the shop keeper till he looks like that
i know that ur tama has to be on odd number generation and i also know that the hunger and food hearts need to be at a certain number but i honestly dont know what they are