Fatal error: Uncaught mysqli_sql_exception: Expression #1 of ORDER BY clause is not in SELECT list, references column 'globalst_portal.categories.view_order' which is not in SELECT list; this is incompatible with DISTINCT in /home/globalstudyporta/public_html/system/database/drivers/mysqli/mysqli_driver.php:179 Stack trace: #0 /home/globalstudyporta/public_html/system/database/drivers/mysqli/mysqli_driver.php(179): mysqli_query(Object(mysqli), 'SELECT DISTINCT...') #1 /home/globalstudyporta/public_html/system/database/DB_driver.php(453): CI_DB_mysqli_driver->_execute('SELECT DISTINCT...') #2 /home/globalstudyporta/public_html/system/database/DB_driver.php(299): CI_DB_driver->simple_query('SELECT DISTINCT...') #3 /home/globalstudyporta/public_html/system/database/DB_active_rec.php(963): CI_DB_driver->query('SELECT DISTINCT...') #4 /home/globalstudyporta/public_html/application/models/gsp_admin_model.php(562): CI_DB_active_record->get() #5 /home/globalstudyporta/public_html/application/controllers/pages.php(34): Gsp_admin_model->get_where_from_all(Array, 'categories', Array, 'view_order') #6 /home/globalstudyporta/public_html/system/core/CodeIgniter.php(359): Pages->index() #7 /home/globalstudyporta/public_html/index.php(202): require_once('/home/globalstu...') #8 {main} thrown in /home/globalstudyporta/public_html/system/database/drivers/mysqli/mysqli_driver.php on line 179