Biographies and photo galleries can be edited by the registered members of Kartalis Tree who have received login details from the administrators.
If you can log in with your details but the system does not let you edit the details of a relative, a biography or a photo gallery, it means that you do not have the rights for it, either because you are not a close enough relative or because that content was created by another user.
Please contact the administrators so that they give you the rights, or send the corrections you would like directly to the administrators at kartalistree@gmail.com.