fixed the config forms not working (controler needed update)

app/Exceptions/Handler.php

@@ -5,6 +5,7 @@ namespace App\Exceptions;
 use Exception;
 use Illuminate\Auth\AuthenticationException;
 use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
+use Illuminate\Validation\ValidationException;
 
 class Handler extends ExceptionHandler
 {
@@ -63,4 +64,20 @@ class Handler extends ExceptionHandler
 			? response()->json(['message' => $exception->getMessage()], 401)
 			: redirect()->guest(route('login'));
 	}
+
+    /**
+     * Convert a validation exception into a response.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  \Illuminate\Validation\ValidationException  $exception
+     * @return \Illuminate\Http\Response
+     */
+    protected function invalid($request, ValidationException $exception)
+    {
+        flash()->error("Some form fields were not filled correctly.");
+
+        return redirect($exception->redirectTo ?? url()->previous())
+            ->withInput($request->except($this->dontFlash))
+            ->withErrors($exception->errors(), $exception->errorBag);
+    }
 }