Fix initial setup page - failed when promo_item was None
Fix initial setup page - failed when promo_item was None

rdsathene/SchoolIdolAPI,rdsathene/SchoolIdolAPI,rdsathene/SchoolIdolAPI,dburr/SchoolIdolAPI,SchoolIdolTomodachi/SchoolIdolAPI,dburr/SchoolIdolAPI,SchoolIdolTomodachi/SchoolIdolAPI,SchoolIdolTomodachi/SchoolIdolAPI,dburr/SchoolIdolAPI