@StudioPicasso: "Please someone on Etsy support help me ..." Even if Etsy Support or the Help Pages sent you here this is a seller peer to peer forum, and should not be considered a way to contact Etsy, if that is your hope (although Etsy does sometimes read and reply to posts).
You can open a support ticket through https://help.etsy.com/hc/en-us/requests/new?segment=selling or Dashboard > Community & Help > Contact Us
Use a different browser for each shop. Chrome and Firefox say.
Log out first then try logging into your other shop.