A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/Index.php

Line Number: 140

Backtrace:

File: /var/www/vhosts/m2zeus.global/httpdocs/application/controllers/Index.php
Line: 140
Function: _error_handler

File: /var/www/vhosts/m2zeus.global/httpdocs/index.php
Line: 314
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /var/www/vhosts/m2zeus.global/httpdocs/system/core/Exceptions.php:271)

Filename: controllers/Index.php

Line Number: 140

Backtrace:

File: /var/www/vhosts/m2zeus.global/httpdocs/application/controllers/Index.php
Line: 140
Function: header

File: /var/www/vhosts/m2zeus.global/httpdocs/index.php
Line: 314
Function: require_once