Error message

• Notice: Trying to access array offset on value of type bool in include() (line 11 of /var/www/vhosts/fietseninsuriname.com/fietseninsuriname.nl/sites/all/themes/fis/node--tour.tpl.php).
• Notice: Trying to access array offset on value of type null in include() (line 11 of /var/www/vhosts/fietseninsuriname.com/fietseninsuriname.nl/sites/all/themes/fis/node--tour.tpl.php).