A PHP Error was encountered

Severity: Warning

Message: Undefined array key 4

Filename: models/Vichill_model.php

Line Number: 347

Backtrace:

File: /home/whistc5/public_html/application/models/Vichill_model.php
Line: 347
Function: _error_handler

File: /home/whistc5/public_html/application/controllers/Teams.php
Line: 398
Function: getBracketLetter

File: /home/whistc5/public_html/index.php
Line: 317
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/whistc5/public_html/system/core/Exceptions.php:271)

Filename: core/Common.php

Line Number: 564

Backtrace:

An uncaught Exception was encountered

Type: TypeError

Message: Vichill_model::getBracketLetter(): Return value must be of type string, null returned

Filename: /home/whistc5/public_html/application/models/Vichill_model.php

Line Number: 347

Backtrace:

File: /home/whistc5/public_html/application/controllers/Teams.php
Line: 398
Function: getBracketLetter

File: /home/whistc5/public_html/index.php
Line: 317
Function: require_once