Could you help me to change my tree . Now Geni follows my husbothes beginning since we had a common mail adress at that time. How to change this in order to make this tree mine instead of Karl-Eriks

Could you help me to change my tree. Now Geni follows my husbond Karl-Erik Nilsson and he gets your mails. It was wrong from the beginning since we had a common mail adress at that time. How to change this in order