Cannot translate “Postcode not found”

Hi,
Thanks for the fantastic plugin!

I’m using it but there’s a portion of text I cannot edit, the error message adds at the end a “Postcode not found” and this text is not editable in the backend, nor in the widget.

Would be nice to be possible to edit that (in the next update?), also it’s not in a <span> so I cannot hide it with CSS 🙁

Otherwise, nice plugin, thanks again!