A PHP Error was encountered

Severity: 8192

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

Filename: libraries/Session.php

Line Number: 149

Backtrace:

File: /home/greloreto/public_html/sisgrel.greloreto.gob.pe/application/controllers/Login.php
Line: 17
Function: __construct

File: /home/greloreto/public_html/sisgrel.greloreto.gob.pe/index.php
Line: 309
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/greloreto/public_html/sisgrel.greloreto.gob.pe/system/core/Exceptions.php:272)

Filename: libraries/Session.php

Line Number: 688

Backtrace:

File: /home/greloreto/public_html/sisgrel.greloreto.gob.pe/application/controllers/Login.php
Line: 17
Function: __construct

File: /home/greloreto/public_html/sisgrel.greloreto.gob.pe/index.php
Line: 309
Function: require_once