Error message

• Notice: Trying to get property 'name' of non-object in ain_fufillment_load_topic() (line 49 of /home/ainold/_OLDAIN/docroot/sites/ainonline.com/modules/ain_fufillment/ain_fufillment.module).
• Notice: Undefined variable: result in ain30_preprocess_node() (line 713 of /home/ainold/_OLDAIN/docroot/sites/ainonline.com/themes/ain30/template.php).
• User warning: The following module is missing from the file system: rules_admin. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1181 of /home/ainold/_OLDAIN/docroot/includes/bootstrap.inc).