Error message

PDOException: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'name' cannot be null: INSERT INTO {ldapname} (uid, name) VALUES (:uid, :name); Array ( [:uid] => 76 [:name] => ) in ldapname_get_ldap_name() (line 26 of /web/sites/drupal/sites/all/modules/custom/ldap_name/ldapname.module).