ParamExceptionハンドルを修正

app/Http/Controllers/Web/WebController.php

@@ -215,7 +215,7 @@ abstract class WebController extends BaseController
             throw $e;
         } catch (ParamException $e) {
             $this->transaction->rollBack();
-            throw  $this->validateErrorResponse([$e->target => $e->getMessage()]);
+            return  $this->validateErrorResponse([$e->target => $e->getMessage()]);
         } catch (Exception $e) {
             $this->transaction->rollBack();
             logs()->error([