Trying to get property ‘post_type’ of non-object

Hi every person! My website is obtaining the White Display of Fatality after releasing it from hosting (on siteground) to live just recently as well as located this mistake as well as am unclear exactly how I can fix this.

Notification: Attempting to obtain building ‘post_type’ of non-object in / home/customer/www/ on line 666

course=”- theme -template-elementor_canvas solitary elementor-default elementor-template-canvas elementor-kit-10 elementor-page elementor-page-682 elementor-maintenance-mode”>>