I just double checked my domain mapped stores ... I didn't notice last night as I bulk'ed edited that facebook code into all category views and then came to each datafeedr plugin settings and updated all settings and then went to first 3 stores and left you above message and went to sleep.
Now - all my domain mapped stores shows me this error:
The domain name you have entered in the Factory does not match this website's domain name. Please log into the Factory and modify your domain name under your store's 'Basic store settings' .. e.g. TurtleLvr.com = shop=38132