An uncaught Exception was encountered

Type: Error

Message: Call to undefined function mysqli_init()

Filename: /home/lnru7503maqk/public_html/system/database/drivers/mysqli/mysqli_driver.php

Line Number: 143

Backtrace:

File: /home/lnru7503maqk/public_html/index.php
Line: 315
Function: require_once