Array doesn't have key named 'isImage'

#0 /usr/share/pear/PHPTAL/Context.php(427): PHPTAL_Context::pathError(Array, 'isImage', 'isImage')
#1 /tmp/tpl_4f8e7fdd_interviews_tpl__dNxFZZLVLpGDKPreCPflkQ.php(119): PHPTAL_Context::path(Array, 'isImage')
#2 /usr/share/pear/PHPTAL.php(676): tpl_4f8e7fdd_interviews_tpl__dNxFZZLVLpGDKPreCPflkQ(Object(PHPTAL), Object(PHPTAL_Context))
#3 /mnt/www/channeltimescom/site/site_php/interviews.php(186): PHPTAL->execute()
#4 /mnt/www/channeltimescom/includes/bootstrap.php(108): include('/mnt/www/channe...')
#5 /mnt/www/channeltimescom/public_html/index.php(2): require_once('/mnt/www/channe...')
#6 {main}