A PHP Error was encountered

Severity: Notice

Message: Undefined variable: data

Filename: controllers/Web.php

Line Number: 422

Backtrace:

File: /var/www/html/tap-app/application/controllers/Web.php
Line: 422
Function: _error_handler

File: /var/www/html/tap-app/index.php
Line: 294
Function: require_once