Warning: Attempt to read property "packageId" on null in /home/cc/public_html/src/App/Controller/DocumentController.php on line 64

Fatal error: Uncaught Laminas\HttpHandlerRunner\Exception\EmitterException: Unable to emit response; headers already sent in /home/cc/public_html/src/App/Controller/DocumentController.php:64 in /home/cc/public_html/vendor/laminas/laminas-httphandlerrunner/src/Exception/EmitterException.php:16 Stack trace: #0 /home/cc/public_html/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitterTrait.php(38): Laminas\HttpHandlerRunner\Exception\EmitterException::forHeadersSent('/home/cc/public...', 64) #1 /home/cc/public_html/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitter.php(22): Laminas\HttpHandlerRunner\Emitter\SapiEmitter->assertNoPreviousOutput() #2 /home/cc/public_html/src/App/Router/Router.php(596): Laminas\HttpHandlerRunner\Emitter\SapiEmitter->emit(Object(Laminas\Diactoros\Response\HtmlResponse)) #3 /home/cc/public_html/src/App/Router/Router.php(538): AWD\Boilerplate\Router\Router->initController('DocumentControl...', 'templates') #4 /home/cc/public_html/src/App/Router/Router.php(404): AWD\Boilerplate\Router\Router->loadController('DocumentControl...', 'templates') #5 /home/cc/public_html/src/App/Router/Router.php(188): AWD\Boilerplate\Router\Router->createRoute(Array, '/templates/', Array) #6 /home/cc/public_html/src/App/Router/Router.php(68): AWD\Boilerplate\Router\Router->addRoute(Array, '/templates/', Array) #7 /home/cc/public_html/routes/web.php(61): AWD\Boilerplate\Router\Router->get('/templates/', Array) #8 /home/cc/public_html/src/App/Boilerplate.php(57): require_once('/home/cc/public...') #9 /home/cc/public_html/src/App/Boilerplate.php(41): AWD\Boilerplate\Boilerplate->registerApp() #10 /home/cc/public_html/src/App/Boilerplate.php(19): AWD\Boilerplate\Boilerplate->registerComponents() #11 /home/cc/public_html/index.php(53): AWD\Boilerplate\Boilerplate->init() #12 {main} thrown in /home/cc/public_html/vendor/laminas/laminas-httphandlerrunner/src/Exception/EmitterException.php on line 16