A PHP Error was encountered

Severity: 8192

Message: sha1(): Passing null to parameter #1 ($string) of type string is deprecated

Filename: controllers/Login.php

Line Number: 43

Backtrace:

File: /home/legacy-bms/htdocs/legacy-bms.balajifarmspeed.com/application/controllers/Login.php
Line: 43
Function: sha1

File: /home/legacy-bms/htdocs/legacy-bms.balajifarmspeed.com/index.php
Line: 315
Function: require_once