A PHP Error was encountered

Severity: Notice

Message: Undefined index: user

Filename: materialstyle/headerweb.php

Line Number: 64

Backtrace:

File: /var/www/intranet/a/application/views/materialstyle/headerweb.php
Line: 64
Function: _error_handler

File: /var/www/intranet/a/application/controllers/reportes/Representantes_web.php
Line: 91
Function: view

File: /var/www/intranet/a/index.php
Line: 315
Function: require_once