A PHP Error was encountered

Severity: 8192

Message: md5(): Passing null to parameter #1 ($string) of type string is deprecated

Filename: models/Login.php

Line Number: 14

Backtrace:

File: /home3/xform/sujancontinental.xform.in/application/models/Login.php
Line: 14
Function: md5

File: /home3/xform/sujancontinental.xform.in/application/controllers/LoginController.php
Line: 161
Function: login_user

File: /home3/xform/sujancontinental.xform.in/index.php
Line: 322
Function: require_once