Fatal error: Uncaught Error: Call to undefined function mysqli_init() in /home/paisa99/public_html/system/database/drivers/mysqli/mysqli_driver.php:135 Stack trace: #0 /home/paisa99/public_html/system/database/DB_driver.php(401): CI_DB_mysqli_driver->db_connect(false) #1 /home/paisa99/public_html/system/database/DB.php(216): CI_DB_driver->initialize() #2 /home/paisa99/public_html/application/config/constants.php(68): DB() #3 /home/paisa99/public_html/system/core/CodeIgniter.php(72): require_once('/home/paisa99/p...') #4 /home/paisa99/public_html/index.php(255): require_once('/home/paisa99/p...') #5 {main} thrown in /home/paisa99/public_html/system/database/drivers/mysqli/mysqli_driver.php on line 135