I had to reload Magix Music, because it crashed, and it went back to free edition and now it won't accept upgrade to plus edition, which I already paid for and lost all my downloads. Please fix it.
@edward-spithaler You don't need to enter the serial number again. Just log in with your e-mail and password. If you cannot log in then please go into the program settings (the gear icon in the top left) and click on the button to clean up the store (on the right side).