I cannot access my own scores

Hello, I need help with the MuseScore Studio.

It won't let me access my own scores. It worked normally earlier, but after closing and reopening the app it stopped working. When I click on a score made by me, it states "the score does not belong to the account you are logged in with". I only have one account though, and I use it on both my Mac and my IPhone.
I tried logging out and logging back in, but it automatically logs me back into this account. Can someone please help me gain back access to my scores? You can check the pictures I attached for the error message and the Scores-page on my MuseScore Studio.