A PHP Error was encountered

Severity: Notice

Message: Undefined variable: _GET

Filename: core/Input.php

Line Number: 574

A PHP Error was encountered

Severity: Notice

Message: Undefined variable: _GET

Filename: core/Input.php

Line Number: 604

Fatal error: Cannot declare class Error, because the name is already in use in D:\xampp\htdocs\PORTAL-DPLK\application\controllers\error.php on line 15