Error message

• Notice: Trying to get property of non-object in include() (line 649 of /vhosts/www.panoramablick.com/sites/all/themes/panoramablick/templates/node--webcam.tpl.php).
• Notice: Trying to get property of non-object in include() (line 743 of /vhosts/www.panoramablick.com/sites/all/themes/panoramablick/templates/node--webcam.tpl.php).