I found this error in my logs
production.ERROR: TijsVerkoyen\Akismet\Exception: Could not resolve host: MY_API_KEY.rest.akismet.com in /opt/flarum/vendor/tijsverkoyen/akismet/Akismet.php:159
Stack trace:
#0 /opt/flarum/vendor/tijsverkoyen/akismet/Akismet.php(363): TijsVerkoyen\Akismet\Akismet->doCall('http://6c52edf8...', Array)
#1 /opt/flarum/vendor/flarum/akismet/src/Listener/ValidatePost.php(41): TijsVerkoyen\Akismet\Akismet->isSpam('@Anna-Sarah#117...', 'Erich', 'news1@quickline...', '', 'comment')
#2 [internal function]: Flarum\Akismet\Listener\ValidatePost->handle(Object(Flarum\Post\Event\Saving))
#3 /opt/flarum/vendor/illuminate/events/Dispatcher.php(379): call_user_func_array(Array, Array)
#4 /opt/flarum/vendor/illuminate/events/Dispatcher.php(209): Illuminate\Events\Dispatcher->Illuminate\Events\{closure}('Flarum\\Post\\Eve...', Array)
#5 /opt/flarum/vendor/flarum/core/src/Post/Command/PostReplyHandler.php(98): Illuminate\Events\Dispatcher->dispatch('Flarum\\Post\\Eve...')
#6 /opt/flarum/vendor/illuminate/bus/Dispatcher.php(90): Flarum\Post\Command\PostReplyHandler->handle(Object(Flarum\Post\Command\PostReply))
#7 /opt/flarum/vendor/illuminate/pipeline/Pipeline.php(128): Illuminate\Bus\Dispatcher->Illuminate\Bus\{closure}(Object(Flarum\Post\Command\PostReply))
#8 /opt/flarum/vendor/illuminate/pipeline/Pipeline.php(104): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Flarum\Post\Command\PostReply))
#9 /opt/flarum/vendor/illuminate/bus/Dispatcher.php(98): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#10 /opt/flarum/vendor/illuminate/bus/Dispatcher.php(76): Illuminate\Bus\Dispatcher->dispatchNow(Object(Flarum\Post\Command\PostReply))
#11 /opt/flarum/vendor/flarum/core/src/Api/Controller/CreatePostController.php(73): Illuminate\Bus\Dispatcher->dispatch(Object(Flarum\Post\Command\PostReply))
#12 /opt/flarum/vendor/flarum/core/src/Api/Controller/AbstractSerializeController.php(96): Flarum\Api\Controller\CreatePostController->data(Object(Laminas\Diactoros\ServerRequest), Object(Tobscure\JsonApi\Document))
#13 /opt/flarum/vendor/flarum/core/src/Api/Controller/AbstractCreateController.php(22): Flarum\Api\Controller\AbstractSerializeController->handle(Object(Laminas\Diactoros\ServerRequest))
#14 /opt/flarum/vendor/flarum/core/src/Http/RouteHandlerFactory.php(38): Flarum\Api\Controller\AbstractCreateController->handle(Object(Laminas\Diactoros\ServerRequest))
#15 /opt/flarum/vendor/flarum/core/src/Http/Middleware/DispatchRoute.php(65): Flarum\Http\RouteHandlerFactory->Flarum\Http\{closure}(Object(Laminas\Diactoros\ServerRequest), Array)
#16 /opt/flarum/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\DispatchRoute->process(Object(Laminas\Diactoros\ServerRequest), Object(Closure))
#17 /opt/flarum/vendor/fof/sentry/src/Middleware/HandleErrorsWithSentry.php(28): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#18 /opt/flarum/vendor/laminas/laminas-stratigility/src/Next.php(61): FoF\Sentry\Middleware\HandleErrorsWithSentry->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#19 /opt/flarum/vendor/flarum/core/src/Http/Middleware/SetLocale.php(50): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#20 /opt/flarum/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\SetLocale->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#21 /opt/flarum/vendor/flarum/core/src/Http/Middleware/CheckCsrfToken.php(45): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#22 /opt/flarum/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\CheckCsrfToken->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#23 /opt/flarum/vendor/flarum/core/src/Http/Middleware/AuthenticateWithHeader.php(55): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#24 /opt/flarum/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\AuthenticateWithHeader->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#25 /opt/flarum/vendor/flarum/core/src/Http/Middleware/AuthenticateWithSession.php(32): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#26 /opt/flarum/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\AuthenticateWithSession->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#27 /opt/flarum/vendor/flarum/core/src/Http/Middleware/RememberFromCookie.php(51): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#28 /opt/flarum/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\RememberFromCookie->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#29 /opt/flarum/vendor/flarum/core/src/Http/Middleware/StartSession.php(61): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#30 /opt/flarum/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\StartSession->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#31 /opt/flarum/vendor/flarum/core/src/Api/Middleware/FakeHttpMethods.php(29): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#32 /opt/flarum/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Api\Middleware\FakeHttpMethods->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#33 /opt/flarum/vendor/flarum/core/src/Http/Middleware/ParseJsonBody.php(28): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#34 /opt/flarum/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\ParseJsonBody->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#35 /opt/flarum/vendor/flarum/core/src/Http/Middleware/HandleErrors.php(57): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#36 /opt/flarum/vendor/laminas/laminas-stratigility/src/Next.php(61): Flarum\Http\Middleware\HandleErrors->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#37 /opt/flarum/vendor/laminas/laminas-stratigility/src/MiddlewarePipe.php(84): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#38 /opt/flarum/vendor/middlewares/request-handler/src/RequestHandler.php(84): Laminas\Stratigility\MiddlewarePipe->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#39 /opt/flarum/vendor/laminas/laminas-stratigility/src/Next.php(61): Middlewares\RequestHandler->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#40 /opt/flarum/vendor/middlewares/base-path-router/src/BasePathRouter.php(97): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#41 /opt/flarum/vendor/laminas/laminas-stratigility/src/Next.php(61): Middlewares\BasePathRouter->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#42 /opt/flarum/vendor/laminas/laminas-stratigility/src/Middleware/OriginalMessages.php(42): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#43 /opt/flarum/vendor/laminas/laminas-stratigility/src/Next.php(61): Laminas\Stratigility\Middleware\OriginalMessages->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#44 /opt/flarum/vendor/middlewares/base-path/src/BasePath.php(53): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#45 /opt/flarum/vendor/laminas/laminas-stratigility/src/Next.php(61): Middlewares\BasePath->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\Next))
#46 /opt/flarum/vendor/laminas/laminas-stratigility/src/MiddlewarePipe.php(84): Laminas\Stratigility\Next->handle(Object(Laminas\Diactoros\ServerRequest))
#47 /opt/flarum/vendor/laminas/laminas-stratigility/src/MiddlewarePipe.php(73): Laminas\Stratigility\MiddlewarePipe->process(Object(Laminas\Diactoros\ServerRequest), Object(Laminas\Stratigility\EmptyPipelineHandler))
#48 /opt/flarum/vendor/laminas/laminas-httphandlerrunner/src/RequestHandlerRunner.php(96): Laminas\Stratigility\MiddlewarePipe->handle(Object(Laminas\Diactoros\ServerRequest))
#49 /opt/flarum/vendor/flarum/core/src/Http/Server.php(42): Laminas\HttpHandlerRunner\RequestHandlerRunner->run()
#50 /opt/flarum/public/index.php(26): Flarum\Http\Server->listen()
#51 {main}
It happened twice and never again, I got nothing reported from any user so I don't really know how to reproduce. Should I open an issue on flarum/core ?
Env: Flarum beta.13