Ack..Woot - what kind of bird call is that?

It is getting to me....having an on line shop meant you need to market online.  I am overwhelmed with it all.  I think I am anoying my facebook friendsand twitter is a mystery.  I mad an effort to look at feedburner and received: 

There has been an error of some kind. Ack!

well, I feel the same way about all of you!  People are typing 'woot' at me and then going 'ack'.....  I do not know what a 404 error is, but if I promise not to do it again maybe I won't have to try and figure out follow friday.