A PHP Error was encountered

Severity: Notice

Message: Undefined index: contentDescriptionTH

Filename: visitor/invitation.php

Line Number: 4

Backtrace:

File: /var/www/signaisa/application/views/visitor/invitation.php
Line: 4
Function: _error_handler

File: /var/www/signaisa/application/libraries/Packfunction.php
Line: 38
Function: view

File: /var/www/signaisa/application/controllers/Visitor.php
Line: 46
Function: packViewPublic

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