A PHP Error was encountered

Severity: Warning

Message: Undefined array key "HTTP_REFERER"

Filename: views/modal_customer_signup.php

Line Number: 124

Backtrace:

File: C:\inetpub\wwwroot\propco\application\views\modal_customer_signup.php
Line: 124
Function: _error_handler

File: C:\inetpub\wwwroot\propco\application\controllers\Landlord.php
Line: 339
Function: view

File: C:\inetpub\wwwroot\propco\index.php
Line: 315
Function: require_once