A PHP Error was encountered

Severity: Warning

Message: Undefined variable $is_logged_in

Filename: views/pages_header.php

Line Number: 22

Backtrace:

File: /var/www/vhosts/provobeach.be/httpdocs/application/views/pages_header.php
Line: 22
Function: _error_handler

File: /var/www/vhosts/provobeach.be/httpdocs/application/views/beach_closed.php
Line: 9
Function: view

File: /var/www/vhosts/provobeach.be/httpdocs/application/controllers/Historiek.php
Line: 41
Function: view

File: /var/www/vhosts/provobeach.be/httpdocs/index.php
Line: 315
Function: require_once