Fatal error: Uncaught ErrorException: Cannot modify header information - headers already sent by (output started at /var/www/www.stakatnpontianak.ac.id/app/Config/Events.php:33) in /var/www/www.stakatnpontianak.ac.id/vendor/codeigniter4/framework/system/Debug/Exceptions.php:137 Stack trace: #0 [internal function]: CodeIgniter\Debug\Exceptions->errorHandler(2, 'Cannot modify h...', '/var/www/www.st...', 137, Array) #1 /var/www/www.stakatnpontianak.ac.id/vendor/codeigniter4/framework/system/Debug/Exceptions.php(137): header('HTTP/1.1 404 No...', true, 404) #2 [internal function]: CodeIgniter\Debug\Exceptions->exceptionHandler(Object(CodeIgniter\Exceptions\PageNotFoundException)) #3 {main} thrown in /var/www/www.stakatnpontianak.ac.id/vendor/codeigniter4/framework/system/Debug/Exceptions.php on line 137

Fatal error: Uncaught ErrorException: Cannot modify header information - headers already sent by (output started at /var/www/www.stakatnpontianak.ac.id/app/Config/Events.php:33) in /var/www/www.stakatnpontianak.ac.id/vendor/codeigniter4/framework/system/Debug/Exceptions.php:137 Stack trace: #0 [internal function]: CodeIgniter\Debug\Exceptions->errorHandler(2, 'Cannot modify h...', '/var/www/www.st...', 137, Array) #1 /var/www/www.stakatnpontianak.ac.id/vendor/codeigniter4/framework/system/Debug/Exceptions.php(137): header('HTTP/1.1 500 In...', true, 500) #2 /var/www/www.stakatnpontianak.ac.id/vendor/codeigniter4/framework/system/Debug/Exceptions.php(197): CodeIgniter\Debug\Exceptions->exceptionHandler(Object(ErrorException)) #3 [internal function]: CodeIgniter\Debug\Exceptions->shutdownHandler() #4 {main} thrown in /var/www/www.stakatnpontianak.ac.id/vendor/codeigniter4/framework/system/Debug/Exceptions.php on line 137