Fatal error: Uncaught Error: Call to a member function result_array() on null in /var/www/html/application/controllers/Main_controller.php:124 Stack trace: #0 /var/www/html/system/core/CodeIgniter.php(359): Main_controller->view() #1 /var/www/html/index.php(303): require_once('/var/www/html/s...') #2 {main} thrown in /var/www/html/application/controllers/Main_controller.php on line 124