diff --git a/src/Api/ApiServiceProvider.php b/src/Api/ApiServiceProvider.php
index d83f7cafc..6cf681320 100644
--- a/src/Api/ApiServiceProvider.php
+++ b/src/Api/ApiServiceProvider.php
@@ -74,6 +74,7 @@ class ApiServiceProvider extends AbstractServiceProvider
 
         $this->container->bind('flarum.api.error_handler', function () {
             $jsonFormatter = new JsonApiFormatter($this->container['flarum.config']->inDebugMode());
+
             return new HttpMiddleware\HandleErrors(
                 $this->container->make(Registry::class),
                 $jsonFormatter,
diff --git a/src/Forum/ForumServiceProvider.php b/src/Forum/ForumServiceProvider.php
index 877b35cb5..9b4320943 100644
--- a/src/Forum/ForumServiceProvider.php
+++ b/src/Forum/ForumServiceProvider.php
@@ -35,7 +35,6 @@ use Flarum\Settings\Event\Saving;
 use Flarum\Settings\SettingsRepositoryInterface;
 use Laminas\Stratigility\MiddlewarePipe;
 use Laminas\Stratigility\MiddlewarePipeInterface;
-use Psr\Http\Server\MiddlewareInterface;
 use Symfony\Contracts\Translation\TranslatorInterface;
 
 class ForumServiceProvider extends AbstractServiceProvider
@@ -132,13 +131,13 @@ class ForumServiceProvider extends AbstractServiceProvider
 
         $this->container->when(FrontendFormatter::class)
         ->needs(MiddlewarePipeInterface::class)
-        ->give(function() {
+        ->give(function () {
             $middleware = $this->container->make('flarum.forum.middleware');
 
             $pipe = new MiddlewarePipe;
 
             foreach ($middleware as $middlewareClass) {
-                if (!in_array($middlewareClass, [
+                if (! in_array($middlewareClass, [
                     'flarum.forum.error_handler',
                     HttpMiddleware\InjectActorReference::class,
                     HttpMiddleware\RememberFromCookie::class,
diff --git a/src/Foundation/ErrorHandling/Middleware/ExecuteErrorToFrontend.php b/src/Foundation/ErrorHandling/Middleware/ExecuteErrorToFrontend.php
index d6c3e76bd..f943ef250 100644
--- a/src/Foundation/ErrorHandling/Middleware/ExecuteErrorToFrontend.php
+++ b/src/Foundation/ErrorHandling/Middleware/ExecuteErrorToFrontend.php
@@ -1,5 +1,12 @@
 <?php
 
+/*
+ * This file is part of Flarum.
+ *
+ * For detailed copyright and license information, please view the
+ * LICENSE file that was distributed with this source code.
+ */
+
 namespace Flarum\Foundation\ErrorHandling\Middleware;
 
 use Flarum\Http\RouteHandlerFactory;
@@ -20,7 +27,8 @@ class ExecuteErrorToFrontend implements MiddlewareInterface
      */
     protected $handlerFactory;
 
-    public function __construct(string $frontend, RouteHandlerFactory $handlerFactory) {
+    public function __construct(string $frontend, RouteHandlerFactory $handlerFactory)
+    {
         $this->frontend = $frontend;
         $this->handlerFactory = $handlerFactory;
     }
@@ -34,4 +42,4 @@ class ExecuteErrorToFrontend implements MiddlewareInterface
 
         return $controller($request, [])->withStatus($error->getStatusCode());
     }
-}
\ No newline at end of file
+}
diff --git a/src/Foundation/ErrorHandling/Registry.php b/src/Foundation/ErrorHandling/Registry.php
index c2526df6a..8d88a9b02 100644
--- a/src/Foundation/ErrorHandling/Registry.php
+++ b/src/Foundation/ErrorHandling/Registry.php
@@ -66,7 +66,7 @@ class Registry
                 $errorType = $this->classMap[$errorClass];
             }
         }
-        
+
         $errorContent = Arr::get($this->contentMap, $errorClass);
 
         if ($errorType) {
diff --git a/src/Http/HttpServiceProvider.php b/src/Http/HttpServiceProvider.php
index 157b1bcf2..343b67576 100644
--- a/src/Http/HttpServiceProvider.php
+++ b/src/Http/HttpServiceProvider.php
@@ -12,17 +12,9 @@ namespace Flarum\Http;
 use Flarum\Discussion\Discussion;
 use Flarum\Discussion\IdWithTransliteratedSlugDriver;
 use Flarum\Foundation\AbstractServiceProvider;
-use Flarum\Foundation\ErrorHandling\FrontendFormatter;
-use Flarum\Foundation\ErrorHandling\Registry;
-use Flarum\Foundation\ErrorHandling\Reporter;
-use Flarum\Foundation\ErrorHandling\WhoopsFormatter;
-use Flarum\Http\Exception\RouteNotFoundException;
 use Flarum\Settings\SettingsRepositoryInterface;
-use Flarum\User\Exception\NotAuthenticatedException;
-use Flarum\User\Exception\PermissionDeniedException;
 use Flarum\User\User;
 use Flarum\User\UsernameSlugDriver;
-use Illuminate\Database\Eloquent\ModelNotFoundException;
 use Illuminate\Support\Arr;
 
 class HttpServiceProvider extends AbstractServiceProvider