Seeing this pesky little bit of gibberish (&NBSP) after some text in your site? It's a super simple fix, this code tells us that there is an extra space in the text box it is appearing in.
To fix this in the design app, go to the text that has that code appearing after it and click in to edit the text box. Remove the extra space after the last character of text and then click out of the text box and publish. The &NBSP error should be gone!