A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: controllers/TypeSwitcher.php

Line Number: 14

Backtrace:

File: /home/customer/www/viethope.org/public_html/sys/tframework/core/TF_Exceptions.php
Line: 270
Function: include

File: /home/customer/www/viethope.org/public_html/sys/tframework/core/Common.php
Line: 642
Function: show_php_error

File: /home/customer/www/viethope.org/public_html/application/modules/frontend/controllers/TypeSwitcher.php
Line: 14
Function: _error_handler

File: /home/customer/www/viethope.org/public_html/sys/tframework/core/Tframework.php
Line: 531
Function: switchType

File: /home/customer/www/viethope.org/public_html/assets/index.php
Line: 343
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/customer/www/viethope.org/public_html/sys/tframework/core/TF_Exceptions.php:273)

Filename: helpers/url_helper.php

Line Number: 564

Backtrace:

File: /home/customer/www/viethope.org/public_html/sys/tframework/core/TF_Exceptions.php
Line: 270
Function: include

File: /home/customer/www/viethope.org/public_html/sys/tframework/core/Common.php
Line: 642
Function: show_php_error

File: /home/customer/www/viethope.org/public_html/application/modules/frontend/controllers/TypeSwitcher.php
Line: 14
Function: redirect

File: /home/customer/www/viethope.org/public_html/sys/tframework/core/Tframework.php
Line: 531
Function: switchType

File: /home/customer/www/viethope.org/public_html/assets/index.php
Line: 343
Function: require_once