A PHP Error was encountered

Severity: Warning

Message: Invalid argument supplied for foreach()

Filename: controllers/Schedules.php

Line Number: 75

Backtrace:

File: /var/www/html/pottorff/list/application/controllers/Schedules.php
Line: 75
Function: _error_handler

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

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /var/www/html/pottorff/list/system/core/Exceptions.php:271)

Filename: tcpdf/tcpdf.php

Line Number: 7630

Backtrace:

File: /var/www/html/pottorff/list/application/includes/tcpdf/tcpdf.php
Line: 7630
Function: header

File: /var/www/html/pottorff/list/application/controllers/Schedules.php
Line: 236
Function: Output

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

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