Hi and welcome to the forum! The Control Panel and the MOFH API server are temporarily down with a 503 error; that’s why the Client Area can’t also sync. Please wait until it gets fixed, maybe an hour or two and it should work.
UPDATE 1: The Control Panel and the MOFH API went up, but there was an issue to all the servers on free hosting platform that redirect all the websites to a suspended page.
UPDATE 2: Now it’s fixed, maybe.