improve return value

apps/app/src/server/routes/apiv3/personal-setting.js

@@ -256,7 +256,7 @@ module.exports = (crowi) => {
     }
     catch (err) {
       logger.error(err);
-      return res.apiv3Err(new ErrorV3(err.message, 'update-personal-settings-failed'));
+      return res.apiv3Err('update-personal-settings-failed');
     }
 
   });