Fatal error: Uncaught TypeError: date_format(): Argument #1 ($object) must be of type DateTimeInterface, bool given in /var/www/vhosts/sheppards.ie/applications/sheppards-3.0/application/controllers/catalogue.php:82 Stack trace: #0 /var/www/vhosts/sheppards.ie/applications/sheppards-3.0/application/controllers/catalogue.php(82): date_format() #1 /var/www/vhosts/sheppards.ie/applications/sheppards-3.0/system/core/CodeIgniter.php(357): Catalogue->day() #2 /var/www/vhosts/sheppards.ie/httpdocs/index.php(250): require_once('...') #3 {main} thrown in /var/www/vhosts/sheppards.ie/applications/sheppards-3.0/application/controllers/catalogue.php on line 82