MuseScore Studio: Not saving my score (error 401)

For some reason, Musescore can't save my scores to the cloud. This message is the error I keep getting:
"MuseScore.com returned an error code: 401 Authorization required."
I'm extremely new to Musescore Studio (I only started composing 2 days ago) and I haven't tried any other saving methods except clicking the "Save (Ctrl+S)," "Save as... (Ctrl+Shift+S)," and the "save to cloud..." options under "File."
So far, it has only been successfully saved to the cloud ONCE.

Is there a way to fix the "error code: 401" I keep getting so I can save my scores to the cloud, or do I just listen to the pop-up window and "try again later" as it tells me to?