今天登录论坛发帖子，发现发送的帖子都有如下的报错
`Warning: Undefined property: stdClass::$included in /www/wwwroot/cery.top/vendor/flarum/core/src/Forum/Content/Discussion.php on line 90
Warning: foreach() argument must be of type array|object, null given in /www/wwwroot/cery.top/vendor/flarum/core/src/Forum/Content/Discussion.php on line 90
Warning: Undefined property: stdClass::$data in /www/wwwroot/cery.top/vendor/flarum/core/src/Forum/Content/Discussion.php on line 97
Warning: Attempt to read property “attributes” on null in /www/wwwroot/cery.top/vendor/flarum/core/src/Forum/Content/Discussion.php on line 97
Warning: Attempt to read property “commentCount” on null in /www/wwwroot/cery.top/vendor/flarum/core/src/Forum/Content/Discussion.php on line 97
Warning: Undefined property: stdClass::$data in /www/wwwroot/cery.top/vendor/flarum/core/src/Forum/Content/Discussion.php on line 99
Warning: Attempt to read property “attributes” on null in /www/wwwroot/cery.top/vendor/flarum/core/src/Forum/Content/Discussion.php on line 99
Warning: Attempt to read property “title” on null in /www/wwwroot/cery.top/vendor/flarum/core/src/Forum/Content/Discussion.php on line 99
Warning: Undefined property: stdClass::$data in /www/wwwroot/cery.top/vendor/flarum/core/src/Forum/Content/Discussion.php on line 84
Warning: Attempt to read property “attributes” on null in /www/wwwroot/cery.top/vendor/flarum/core/src/Forum/Content/Discussion.php on line 84
Warning: Attempt to read property “slug” on null in /www/wwwroot/cery.top/vendor/flarum/core/src/Forum/Content/Discussion.php on line 84
Fatal error: Uncaught Laminas\HttpHandlerRunner\Exception\EmitterException: Output has been emitted previously; cannot emit response in /www/wwwroot/cery.top/vendor/laminas/laminas-httphandlerrunner/src/Exception/EmitterException.php:24 Stack trace: #0 /www/wwwroot/cery.top/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitterTrait.php(40): Laminas\HttpHandlerRunner\Exception\EmitterException::forOutputSent() #1 /www/wwwroot/cery.top/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitter.php(27): Laminas\HttpHandlerRunner\Emitter\SapiEmitter->assertNoPreviousOutput() #2 /www/wwwroot/cery.top/vendor/laminas/laminas-httphandlerrunner/src/RequestHandlerRunner.php(98): Laminas\HttpHandlerRunner\Emitter\SapiEmitter->emit() #3 /www/wwwroot/cery.top/vendor/flarum/core/src/Http/Server.php(44): Laminas\HttpHandlerRunner\RequestHandlerRunner->run() #4 /www/wwwroot/cery.top/public/index.php(26): Flarum\Http\Server->listen() #5 {main} thrown in /www/wwwroot/cery.top/vendor/laminas/laminas-httphandlerrunner/src/Exception/EmitterException.php on line 24`
无法确定是什么问题