Family Sharing issues after updating Apple Account email

About a week ago, I updated the primary email address associated with my Apple Account. Since that time, my link with my child’s account (of which I am the Organizer and Parent/Guardian) does not seem to work.

I no longer receive Ask to Buy requests when my child sends them, changes I make to the Child account settings on my device do not appear on their device and my old email address still appears in the App Store and cannot be changed/logged out of.