A PHP Error was encountered

Severity: Notice

Message: Undefined variable: app

Filename: views/cadastro.php

Line Number: 39

Backtrace:

File: /home/storage/c/17/3f/indicadoresms/public_html/msappweb/application/areacliente/views/cadastro.php
Line: 39
Function: _error_handler

File: /home/storage/c/17/3f/indicadoresms/public_html/msappweb/application/areacliente/controllers/Cadastro.php
Line: 229
Function: view

File: /home/storage/c/17/3f/indicadoresms/public_html/msappweb/areacliente.php
Line: 334
Function: require_once

https://indicadoresms.websiteseguro.com/msappweb/areacliente.php/cadastro/primeiroacesso/?app=&codigo=167" id="frm01">