A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 0

Filename: controllers/Single_Thread.php

Line Number: 42

Backtrace:

File: /home/opt/public_html/opt-tracker/application/controllers/Single_Thread.php
Line: 42
Function: _error_handler

File: /home/opt/public_html/opt-tracker/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type null

Filename: controllers/Single_Thread.php

Line Number: 42

Backtrace:

File: /home/opt/public_html/opt-tracker/application/controllers/Single_Thread.php
Line: 42
Function: _error_handler

File: /home/opt/public_html/opt-tracker/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 0

Filename: controllers/Single_Thread.php

Line Number: 43

Backtrace:

File: /home/opt/public_html/opt-tracker/application/controllers/Single_Thread.php
Line: 43
Function: _error_handler

File: /home/opt/public_html/opt-tracker/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type null

Filename: controllers/Single_Thread.php

Line Number: 43

Backtrace:

File: /home/opt/public_html/opt-tracker/application/controllers/Single_Thread.php
Line: 43
Function: _error_handler

File: /home/opt/public_html/opt-tracker/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 /home/opt/public_html/opt-tracker/system/core/Exceptions.php:271)

Filename: helpers/url_helper.php

Line Number: 564

Backtrace:

File: /home/opt/public_html/opt-tracker/application/controllers/Single_Thread.php
Line: 93
Function: redirect

File: /home/opt/public_html/opt-tracker/index.php
Line: 315
Function: require_once