There is not enough space left on the storage to upload more content. You will have to remove some music from your Jooki.
First, delete playlists, and then remove the "unused tracks" coming from those playlists, to free-up space. To remove unused tracks: open the 'Unused tracks' playlist, select the track you want to remove and click the Trash icon. Then click 'Delete track' in the confirmation box.
You can also add a memory card (SD Card) card to increase the internal storage. To learn about memory cards, click here:
If you get the "Jooki storage is full" message, all tough the SD Card is inserted, please contact our support team through support@Jooki.rocks. We'll respons quickly to all your questions!