Fatal error: Uncaught Error: Call to undefined function get_instance() in C:\xampp\htdocs\Smart Hospital v6.0 Nulled\smart_hospital_update_5.0_to_6.0\step-2\application\views\patient\systemnotification.php:2 Stack trace: #0 {main} thrown in C:\xampp\htdocs\Smart Hospital v6.0 Nulled\smart_hospital_update_5.0_to_6.0\step-2\application\views\patient\systemnotification.php on line 2