An uncaught Exception was encountered

Type: Error

Message: Cannot use object of type CI_DB_mysqli_result as array

Filename: /var/www/html/application/modules_front/home/controllers/Home.php

Line Number: 550

Backtrace:

File: /var/www/html/application/modules_front/home/controllers/Home.php
Line: 161
Function: research_list

File: /var/www/html/index.php
Line: 315
Function: require_once