I just installed Flarum and everything works but I get a error, it says "Oops! Something went wrong. Please reload the page and try again." when I go on the profile page and start a discussion, I enabled the debug and it said this:
GET http://localhost/Flarum/api/posts?filter%5Buser%5D=1&filter%5Btype%5D=comment&page%5Blimit%5D=20&sort=-time
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<b>Warning</b>: count(): Parameter must be an array or an object that implements Countable in <b>C:\xampp\htdocs\Flarum\vendor\flarum\core\src\Core\Post\RegisteredTypesScope.php</b> on line <b>52</b><br />
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<b>Warning</b>: count(): Parameter must be an array or an object that implements Countable in <b>C:\xampp\htdocs\Flarum\vendor\flarum\core\src\Core\Post\RegisteredTypesScope.php</b> on line <b>52</b><br />
<br />
<b>Warning</b>: count(): Parameter must be an array or an object that implements Countable in <b>C:\xampp\htdocs\Flarum\vendor\flarum\core\src\Core\Post\RegisteredTypesScope.php</b> on line <b>52</b><br />
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<b>Fatal error</b>: Uncaught RuntimeException: Output has been emitted previously; cannot emit response in C:\xampp\htdocs\Flarum\vendor\zendframework\zend-diactoros\src\Response\SapiEmitterTrait.php:41
Stack trace:
#0 C:\xampp\htdocs\Flarum\vendor\zendframework\zend-diactoros\src\Response\SapiEmitter.php(30): Zend\Diactoros\Response\SapiEmitter->assertNoPreviousOutput()
#1 C:\xampp\htdocs\Flarum\vendor\zendframework\zend-diactoros\src\Server.php(167): Zend\Diactoros\Response\SapiEmitter->emit(Object(Flarum\Api\JsonApiResponse))
#2 C:\xampp\htdocs\Flarum\vendor\flarum\core\src\Http\AbstractServer.php(36): Zend\Diactoros\Server->listen(Object(Zend\Stratigility\NoopFinalHandler))
#3 C:\xampp\htdocs\Flarum\api.php(16): Flarum\Http\AbstractServer->listen()
#4 {main}
thrown in <b>C:\xampp\htdocs\Flarum\vendor\zendframework\zend-diactoros\src\Response\SapiEmitterTrait.php</b> on line <b>41</b><br />
Does anyone know how to fix this as I don't understand any of this.
