found broken link in Inspect Element but cannot remove

Hi, I don't think I really understood what wpmudev has to offer. Now I think there may be some value in continuing a membership. So with that, can you please help me remove this broken href? It is on the site I just finished and the problem can be seen here as well as on several other pages:

I deleted the photo it was pointing to, but it is still looking for it and it keeps showing up as this broken link: <img src="">

You can see it in firebug or inspect element, but where do I go to delete this for good? Also, maybe not important, but I built this on my local host using MAMP, even though the site is now live, this one file is still referenced to my local host 8888 and I cannot remove.