My NEW "My Passport for Mac" says its full?

I plugged in my Passport for Mac to backup my Mac and i get a msg saying that the Passport for mac’s drive is full and to erase some of the files to make space and backup again. The drive is EMPTY!
Can anyone help with this issue?

Hi @angiet,

Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for best assistance and troubleshooting:
https://support-en.wd.com/app/ask