Manually delete contacts

Hello,

After an upgrade, I saw a new address book called :
contacts_shared_by_C556EC28-C8AF-41D2-A3C3-5AF174159B12

I can’t delete any contact, the address book ans I can-t transfert contact to other address book, read(only.

I don’t know why, but contacts are visible in any NC account.

I try to completely delete contact app, but I understand datas are still here.

Any Idea please ?

Thanks