Fatal error: Uncaught Error: Call to a member function getContentType() on null in /var/www/html/Components/HTML/ContentfulTemplates/Base.php:1184 Stack trace: #0 /var/www/html/Components/HTML/ContentfulTemplates/Base.php(324): Components\HTML\ContentfulTemplates\Base::isImage(Object(Contentful\Delivery\Resource\Asset)) #1 /var/www/html/Controllers/Learning/Learning.php(285): Components\HTML\ContentfulTemplates\Base::setUpFromModularPageEntry(Object(Contentful\Delivery\Resource\Entry)) #2 /var/www/html/System/Controller/Controller.php(578): Controllers\Learning\Learning->course('principles-of-h...') #3 /var/www/html/System/Controller/Controller.php(1183): System\Controller\Controller->__invoke(NULL) #4 /var/www/html/dispatcher.php(59): System\Controller\Controller::dispatch(Object(System\Network\HTTP\Request)) #5 {main} thrown in /var/www/html/Components/HTML/ContentfulTemplates/Base.php on line 1184