An uncaught Exception was encountered

Type: Error

Message: Call to undefined function mysqli_init()

Filename: /var/www/erp/invoicePlane/vendor/codeigniter/framework/system/database/drivers/mysqli/mysqli_driver.php

Line Number: 135

Backtrace:

File: /var/www/erp/invoicePlane/application/third_party/MX/Loader.php
Line: 180
Function: DB

File: /var/www/erp/invoicePlane/application/core/Base_Controller.php
Line: 56
Function: database

File: /var/www/erp/invoicePlane/application/core/User_Controller.php
Line: 29
Function: __construct

File: /var/www/erp/invoicePlane/application/core/Admin_Controller.php
Line: 26
Function: __construct

File: /var/www/erp/invoicePlane/index.php
Line: 325
Function: require_once