I restored my iPhone 6 recently, and all the apps seem to have not been fully updated when using an iCloud backup, so I have like 73 updates to do. When I try to do those updates it says "Theres is a billing problem with a family member's previous purchase" "Ask the family organizer to update their billing information". Problem is, I never set up or joined Family Sharing, so I went into settings to leave or shut it off, but its labeled as "Set Up Family Sharing". But when I click that, it says "Cannot Start Family Sharing" "(The Email for my Account) is already used for shared purchases in (presumably Chinese characters)'s family. Ask (chinese characters) to send you an invitationto join Family Sharing. According to google translate, the first Chinese Characters mean Junfeng Money and the second set mean Junfeng.