honeysucklemusic:  In your Google Merchant Center account on the "General Settings" tab, if your Website URL setting appears as "Verified and Claimed" with a green checkmark, then you should be all set to go.  Your next upload should clear up the error.

I recommend that you verify your domain without the "www.".  This works out better, because if you register "honeysucklemusic.com", that automatically includes all subdomains of that domain, including "www.honeysucklemusic.com", "store.honeysucklemusic.com", etc.