Using customised member database table to store signup user detail

currently we are trying to create customised signup and login pages and we need to store user details in custom created member table but it is giving me error message “error messageError: WDE0027: The current user does not have permissions to insert on the Members collection.” so how can we use our own table to store signup details like name,password,email etc…???

Hi,
Please see a similar post here .