You may find this page helpful:
https://www.wikitree.com/wiki/Help:Adoptions_and_Multiple_Parents
You should edit this post and add Adoption as a tag. You can also go to the project list and contact the Adoption angels project for assistance. The project page can be found under the Find drop down menu. There’s also a link to the Adoption angels help form under the Help drop down menu.
If there are duplicate profiles, these will need to be merged.