i was used an extension of seo plugin. Every setting finished then err happend.
return:
POST https://forum.findu.top/api/discussions
Swift_TransportException: Expected response code 354 but got code "503", with message "503 bad sequence of commands
" in /www/wwwroot/forum.findu.top/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php:459
Stack trace:
#0 /www/wwwroot/forum.findu.top/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(344): Swift_Transport_AbstractSmtpTransport->assertResponseCode('503 bad sequenc...', Array)
#1 /www/wwwroot/forum.findu.top/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/EsmtpTransport.php(305): Swift_Transport_AbstractSmtpTransport->executeCommand('DATA\r\n', Array, Array, false, NULL)
#2 /www/wwwroot/forum.findu.top/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(392): Swift_Transport_EsmtpTransport->executeCommand('DATA\r\n', Array, Array)
#3 /www/wwwroot/forum.findu.top/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(499): Swift_Transport_AbstractSmtpTransport->doDataCommand(Array)
#4 /www/wwwroot/forum.findu.top/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(518): Swift_Transport_AbstractSmtpTransport->doMailTransaction(Object(Swift_Message), 'support@findu.t...', Array, Array)
#5 /www/wwwroot/forum.findu.top/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(206): Swift_Transport_AbstractSmtpTransport->sendTo(Object(Swift_Message), 'support@findu.t...', Array, Array)
#6 /www/wwwroot/forum.findu.top/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mailer.php(71): Swift_Transport_AbstractSmtpTransport->send(Object(Swift_Message), Array)
#7 /www/wwwroot/forum.findu.top/vendor/illuminate/mail/Mailer.php(521): Swift_Mailer->send(Object(Swift_Message), Array)
#8 /www/wwwroot/forum.findu.top/vendor/illuminate/mail/Mailer.php(288): Illuminate\Mail\Mailer->sendSwiftMessage(Object(Swift_Message))
#9 /www/wwwroot/forum.findu.top/vendor/illuminate/mail/Mailer.php(200): Illuminate\Mail\Mailer->send(Object(Illuminate\Support\HtmlString), Array, Object(Closure))
#10 /www/wwwroot/forum.findu.top/vendor/fof/pretty-mail/src/Mailer.php(77): Illuminate\Mail\Mailer->html('<html>\n<head>\n ...', Object(Closure))
#11 /www/wwwroot/forum.findu.top/vendor/tpokorra/flarum-ext-post-notification/src/Listeners/PostNotification.php(121): FoF\PrettyMail\Mailer->raw('\n\n\nhttps://foru...', Object(Closure))
#12 /www/wwwroot/forum.findu.top/vendor/tpokorra/flarum-ext-post-notification/src/Listeners/PostNotification.php(56): tpokorra\PostNotification\Listeners\PostNotification->SendNotification(Object(Flarum\Post\CommentPost), true)
#13 /www/wwwroot/forum.findu.top/vendor/illuminate/events/Dispatcher.php(392): tpokorra\PostNotification\Listeners\PostNotification->PostWasPosted(Object(Flarum\Post\Event\Posted))
#14 /www/wwwroot/forum.findu.top/vendor/illuminate/events/Dispatcher.php(237): Illuminate\Events\Dispatcher->Illuminate\Events\{closure}('Flarum\\Post\\Eve...', Array)
#15 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Foundation/DispatchEventsTrait.php(33): Illuminate\Events\Dispatcher->dispatch('Flarum\\Post\\Eve...')
#16 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Post/Command/PostReplyHandler.php(104): Flarum\Post\Command\PostReplyHandler->dispatchEventsFor(Object(Flarum\Post\CommentPost), Object(Flarum\User\User))
#17 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Notification/NotificationSyncer.php(148): Flarum\Post\Command\PostReplyHandler->Flarum\Post\Command\{closure}()
#18 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Post/Command/PostReplyHandler.php(105): Flarum\Notification\NotificationSyncer->onePerUser(Object(Closure))
#19 /www/wwwroot/forum.findu.top/vendor/illuminate/bus/Dispatcher.php(122): Flarum\Post\Command\PostReplyHandler->handle(Object(Flarum\Post\Command\PostReply))
#20 /www/wwwroot/forum.findu.top/vendor/illuminate/pipeline/Pipeline.php(128): Illuminate\Bus\Dispatcher->Illuminate\Bus\{closure}(Object(Flarum\Post\Command\PostReply))
#21 /www/wwwroot/forum.findu.top/vendor/illuminate/pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Flarum\Post\Command\PostReply))
#22 /www/wwwroot/forum.findu.top/vendor/illuminate/bus/Dispatcher.php(132): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#23 /www/wwwroot/forum.findu.top/vendor/illuminate/bus/Dispatcher.php(78): Illuminate\Bus\Dispatcher->dispatchNow(Object(Flarum\Post\Command\PostReply))
#24 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Discussion/Command/StartDiscussionHandler.php(82): Illuminate\Bus\Dispatcher->dispatch(Object(Flarum\Post\Command\PostReply))
#25 /www/wwwroot/forum.findu.top/vendor/illuminate/bus/Dispatcher.php(122): Flarum\Discussion\Command\StartDiscussionHandler->handle(Object(Flarum\Discussion\Command\StartDiscussion))
#26 /www/wwwroot/forum.findu.top/vendor/illuminate/pipeline/Pipeline.php(128): Illuminate\Bus\Dispatcher->Illuminate\Bus\{closure}(Object(Flarum\Discussion\Command\StartDiscussion))
#27 /www/wwwroot/forum.findu.top/vendor/illuminate/pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Flarum\Discussion\Command\StartDiscussion))
#28 /www/wwwroot/forum.findu.top/vendor/illuminate/bus/Dispatcher.php(132): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#29 /www/wwwroot/forum.findu.top/vendor/illuminate/bus/Dispatcher.php(78): Illuminate\Bus\Dispatcher->dispatchNow(Object(Flarum\Discussion\Command\StartDiscussion))
#30 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Api/Controller/CreateDiscussionController.php(61): Illuminate\Bus\Dispatcher->dispatch(Object(Flarum\Discussion\Command\StartDiscussion))
#31 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Api/Controller/AbstractSerializeController.php(110): Flarum\Api\Controller\CreateDiscussionController->data(Object(Laminas\Diactoros\ServerRequest), Object(Tobscure\JsonApi\Document))
#32 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Api/Controller/AbstractCreateController.php(22): Flarum\Api\Controller\AbstractSerializeController->handle(Object(Laminas\Diactoros\ServerRequest))
#33 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Http/RouteHandlerFactory.php(41): Flarum\Api\Controller\AbstractCreateController->handle(Object(Laminas\Diactoros\ServerRequest))
#34 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Http/Middleware/ExecuteRoute.php(27): Flarum\Http\RouteHandlerFactory->Flarum\Http\{closure}(Object(Laminas\Diactoros\ServerRequest), Array)
#35 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\ExecuteRoute->process(Object(Laminas\Diactoros\ServerRequest), Object(Closure))
#36 /www/wwwroot/forum.findu.top/vendor/malago/flarum-achievements/src/Middlewares/MiddlewarePosted.php(27): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#37 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Malago\Achievements\Middlewares\MiddlewarePosted->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#38 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Api/Middleware/ThrottleApi.php(33): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#39 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Api\Middleware\ThrottleApi->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#40 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Http/Middleware/CheckCsrfToken.php(44): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#41 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\CheckCsrfToken->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#42 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Http/Middleware/ResolveRoute.php(67): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#43 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\ResolveRoute->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#44 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Http/Middleware/SetLocale.php(51): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#45 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\SetLocale->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#46 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Http/Middleware/AuthenticateWithHeader.php(56): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#47 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\AuthenticateWithHeader->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#48 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Http/Middleware/AuthenticateWithSession.php(31): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#49 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\AuthenticateWithSession->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#50 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Http/Middleware/RememberFromCookie.php(52): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#51 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\RememberFromCookie->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#52 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Http/Middleware/StartSession.php(61): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#53 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\StartSession->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#54 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Api/Middleware/FakeHttpMethods.php(29): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#55 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Api\Middleware\FakeHttpMethods->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#56 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Http/Middleware/ParseJsonBody.php(28): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#57 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\ParseJsonBody->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#58 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Http/Middleware/HandleErrors.php(57): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#59 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\HandleErrors->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#60 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Http/Middleware/InjectActorReference.php(25): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#61 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\InjectActorReference->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#62 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/MiddlewarePipe.php(84): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#63 /www/wwwroot/forum.findu.top/vendor/middlewares/request-handler/src/RequestHandler.php(84): Laminas\Stratigility\MiddlewarePipe->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#64 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Middlewares\RequestHandler->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#65 /www/wwwroot/forum.findu.top/vendor/middlewares/base-path-router/src/BasePathRouter.php(101): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#66 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Middlewares\BasePathRouter->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#67 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Middleware/OriginalMessages.php(42): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#68 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Laminas\Stratigility\Middleware\OriginalMessages->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#69 /www/wwwroot/forum.findu.top/vendor/middlewares/base-path/src/BasePath.php(73): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#70 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Middlewares\BasePath->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#71 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Http/Middleware/ProcessIp.php(24): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#72 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\ProcessIp->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#73 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/MiddlewarePipe.php(84): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#74 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-stratigility/src/MiddlewarePipe.php(73): Laminas\Stratigility\MiddlewarePipe->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\EmptyPipelineHandler))
#75 /www/wwwroot/forum.findu.top/vendor/laminas/laminas-httphandlerrunner/src/RequestHandlerRunner.php(96): Laminas\Stratigility\MiddlewarePipe->handle(Object(Laminas\Diactoros\ServerRequest))
#76 /www/wwwroot/forum.findu.top/vendor/flarum/core/src/Http/Server.php(44): Laminas\HttpHandlerRunner\RequestHandlerRunner->run()
#77 /www/wwwroot/forum.findu.top/public/index.php(26): Flarum\Http\Server->listen()
#78 {main}
