A PHP Error was encountered

Severity: Warning

Message: Invalid argument supplied for foreach()

Filename: controllers/Schedules.php

Line Number: 72

Backtrace:

File: /var/www/html/pottorff/list/application/controllers/Schedules.php
Line: 72
Function: _error_handler

File: /var/www/html/pottorff/list/index.php
Line: 315
Function: require_once

TCPDF ERROR: Some data has already been output, can't send PDF file