Error message

• Notice: Trying to get property of non-object in wcdlg_taxonomy_get_terms() (line 362 of /var/www/html/sites/all/themes/wcdlg/template.php).
• Warning: array_diff(): Argument #1 is not an array in FacesExtendable->extend() (line 229 of /var/www/html/sites/all/modules/contrib/rules/includes/faces.inc).
• Warning: class_implements(): Class RulesPluginFeaturesIntegrationInterface does not exist and could not be loaded in FacesExtendable->extend() (line 233 of /var/www/html/sites/all/modules/contrib/rules/includes/faces.inc).
• Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/includes/common.inc:2777) in drupal_send_headers() (line 1486 of /var/www/html/includes/bootstrap.inc).
• Error: Unsupported operand types in FacesExtendable->extend() (line 233 of /var/www/html/sites/all/modules/contrib/rules/includes/faces.inc).