How to join Apple Music Family Plan from Android that already has an Apple Music Individual Subscription

Having an issue joining a family plan (My Daughters and mom all have apple devices). Invite sent from Daughters IPHONE XR

When i open the invitation, i am asked to sign in to Apple Music, when i do i get an error

Family Plan setting on my daughters Iphone who sent the invitation:

I have read some input about setting up Purchase Sharing and or cancelling the individual plan on my android and or logging into apple music on my android using my daughters icloud account, so i am not sure what process to follow?

I also dont want to lose my library and any of my playlists on my current existing account if it can be avoided.