Error message

• Notice: Undefined index: footer_third in include() (line 274 of /var/www/html/sites/all/themes/lexus_subtheme/templates/page.tpl.php).
• Notice: Undefined index: footer_forth in include() (line 274 of /var/www/html/sites/all/themes/lexus_subtheme/templates/page.tpl.php).