the leaderboard not updated

I recently redid my Jumpymoon Lt app with swift 4 and I connected the old leaderboard to give continuity with the players of the old version with unity.

Now I have connected the leaderboard to the game and I can log in but it does not update with the scores made with the app.

I've tried everything but I'm a beginner with swift 4 and I do not know how to solve.

Can you help me? I would be very grateful.