When I upgrade to PHP 8.1 I get the following errors.

Deprecated: Automatic conversion of false to array is deprecated in I:\wamp\csc\plugins\system\tagz\tagz.php on line 228

Warning: Cannot modify header information - headers already sent by (output started at I:\wamp\csc\plugins\system\tagz\tagz.php:228) in I:\wamp\csc\libraries\src\Input\Cookie.php on line 108