diff --git a/webapp/config/packages/nelmio_api_doc.yaml b/webapp/config/packages/nelmio_api_doc.yaml
index 537fbd3124..949dfe02b0 100644
--- a/webapp/config/packages/nelmio_api_doc.yaml
+++ b/webapp/config/packages/nelmio_api_doc.yaml
@@ -9,7 +9,7 @@ nelmio_api_doc:
         components:
             securitySchemes:
                 basicAuth:
-                    type: http
+                    type: https
                     scheme: basic
             parameters:
                 cid:
diff --git a/webapp/src/Controller/API/AbstractRestController.php b/webapp/src/Controller/API/AbstractRestController.php
index bb15531199..3fefa5da9c 100644
--- a/webapp/src/Controller/API/AbstractRestController.php
+++ b/webapp/src/Controller/API/AbstractRestController.php
@@ -25,6 +25,7 @@
 
 /**
  * Class AbstractRestController
+ * @OA\Response(response="400", ref="#/components/responses/InvalidResponse")
  * @package App\Controller\API
  */
 abstract class AbstractRestController extends AbstractFOSRestController
diff --git a/webapp/src/Controller/API/ContestController.php b/webapp/src/Controller/API/ContestController.php
index d0b795213d..89363ca5ca 100644
--- a/webapp/src/Controller/API/ContestController.php
+++ b/webapp/src/Controller/API/ContestController.php
@@ -332,10 +332,6 @@ public function setBannerAction(Request $request, string $id, ValidatorInterface
      *     description="Contest start time changed successfully",
      * )
      * @OA\Response(
-     *     response="400",
-     *     description="Invalid input data"
-     * )
-     * @OA\Response(
      *     response="403",
      *     description="Changing start time not allowed"
      * )
diff --git a/webapp/src/Controller/API/GeneralInfoController.php b/webapp/src/Controller/API/GeneralInfoController.php
index 4a8342a38a..02fda2a5f9 100644
--- a/webapp/src/Controller/API/GeneralInfoController.php
+++ b/webapp/src/Controller/API/GeneralInfoController.php
@@ -29,6 +29,7 @@
 
 /**
  * @OA\Tag(name="General")
+ * @OA\Response(response="400", ref="#/components/responses/InvalidResponse")
  */
 class GeneralInfoController extends AbstractFOSRestController
 {
diff --git a/webapp/src/FosRestBundle/.FlattenExceptionHandler.php.swp b/webapp/src/FosRestBundle/.FlattenExceptionHandler.php.swp
new file mode 100644
index 0000000000..740b4fd8d9
Binary files /dev/null and b/webapp/src/FosRestBundle/.FlattenExceptionHandler.php.swp differ