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(1/1) ErrorException

Cannot modify header information - headers already sent by (output started at /home1/paras/public_html/networkbulls.org/app/Http/Controllers/Front/NewsLetterController.php:37)

in NewsLetterController.php (line 44)
at HandleExceptions->handleError(2, 'Cannot modify header information - headers already sent by (output started at /home1/paras/public_html/networkbulls.org/app/Http/Controllers/Front/NewsLetterController.php:37)', '/home1/paras/public_html/networkbulls.org/app/Http/Controllers/Front/NewsLetterController.php', 44, array('news_letter_id' => '15', 'request' => object(Request), 'news_letter' => object(NewsLetter), 'news_letter_file' => array('', 'public', 'news_letter', 'cisco-software-defined-access.pdf'), 'filename' => 'cisco-software-defined-access.pdf', 'file' => '/home1/paras/public_html/networkbulls.org/public/news_letter/cisco-software-defined-access.pdf'))
at header('Content-Description: File Transfer')in NewsLetterController.php (line 44)
at NewsLetterController->download_news_letter('15', object(Request))
at call_user_func_array(array(object(NewsLetterController), 'download_news_letter'), array('slug' => 'bXpmZTJsZ3NTVWV1eUdjOHV2ZmNLUT09', object(Request)))in Controller.php (line 55)
at Controller->callAction('download_news_letter', array('slug' => 'bXpmZTJsZ3NTVWV1eUdjOHV2ZmNLUT09', object(Request)))in ControllerDispatcher.php (line 44)
at ControllerDispatcher->dispatch(object(Route), object(NewsLetterController), 'download_news_letter')in Route.php (line 203)
at Route->runController()in Route.php (line 160)
at Route->run()in Router.php (line 572)
at Router->Illuminate\Routing\{closure}(object(Request))in Pipeline.php (line 30)
at Pipeline->Illuminate\Routing\{closure}(object(Request))in SubstituteBindings.php (line 41)
at SubstituteBindings->handle(object(Request), object(Closure))in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))in VerifyCsrfToken.php (line 65)
at VerifyCsrfToken->handle(object(Request), object(Closure))in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))in ShareErrorsFromSession.php (line 49)
at ShareErrorsFromSession->handle(object(Request), object(Closure))in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))in StartSession.php (line 64)
at StartSession->handle(object(Request), object(Closure))in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))in AddQueuedCookiesToResponse.php (line 37)
at AddQueuedCookiesToResponse->handle(object(Request), object(Closure))in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))in EncryptCookies.php (line 59)
at EncryptCookies->handle(object(Request), object(Closure))in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))in Pipeline.php (line 102)
at Pipeline->then(object(Closure))in Router.php (line 574)
at Router->runRouteWithinStack(object(Route), object(Request))in Router.php (line 533)
at Router->dispatchToRoute(object(Request))in Router.php (line 511)
at Router->dispatch(object(Request))in Kernel.php (line 176)
at Kernel->Illuminate\Foundation\Http\{closure}(object(Request))in Pipeline.php (line 30)
at Pipeline->Illuminate\Routing\{closure}(object(Request))in TransformsRequest.php (line 30)
at TransformsRequest->handle(object(Request), object(Closure))in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))in TransformsRequest.php (line 30)
at TransformsRequest->handle(object(Request), object(Closure))in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))in ValidatePostSize.php (line 27)
at ValidatePostSize->handle(object(Request), object(Closure))in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))in CheckForMaintenanceMode.php (line 46)
at CheckForMaintenanceMode->handle(object(Request), object(Closure))in Pipeline.php (line 148)
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))in Pipeline.php (line 53)
at Pipeline->Illuminate\Routing\{closure}(object(Request))in Pipeline.php (line 102)
at Pipeline->then(object(Closure))in Kernel.php (line 151)
at Kernel->sendRequestThroughRouter(object(Request))in Kernel.php (line 116)
at Kernel->handle(object(Request))in index.php (line 52)