Fatal error: Uncaught Klein\Exceptions\LockedResponseException: Response is locked in /var/www/website/vendor/klein/klein/src/Klein/AbstractResponse.php:276 Stack trace: #0 /var/www/website/vendor/klein/klein/src/Klein/AbstractResponse.php(211): Klein\AbstractResponse->requireUnlocked() #1 /var/www/website/vendor/klein/klein/src/Klein/Klein.php(948): Klein\AbstractResponse->code() #2 /var/www/website/vendor/klein/klein/src/Klein/Klein.php(645): Klein\Klein->error() #3 /var/www/website/routes.php(1517): Klein\Klein->dispatch() #4 /var/www/website/platform.php(35): include_once('/var/www/websit...') #5 /var/www/website/public/index.php(3): include_once('/var/www/websit...') #6 {main} thrown in /var/www/website/vendor/klein/klein/src/Klein/AbstractResponse.php on line 276