After creating an Advanced Page node

After creating an Advanced Page node, this error message poping up

Notice: Undefined index: path in path_form_element_validate() (line 155 of /var/www/test/drupal-7.14/modules/path/path.module).
Notice: Undefined property: stdClass::$id in advanced_page_node_presave() (line 124 of /var/www/test/drupal-7.14/sites/all/modules/advanced_page/advanced_page.module).
Notice: Trying to get property of non-object in advanced_page_node_presave() (line 127 of /var/www/test/drupal-7.14/sites/all/modules/advanced_page/advanced_page.module).