That looks very much like the SHOUTcast sc_trans log output, and if that is what you're using then there are a number of bugs in it's handling of titles which can cause that error to appear (even in valid scenarios).
I do have a newer test build but as i've changed other things, i don't think it's going to be safe to provide you that until Steve, etc have had a chance to test things out with it (if using in a non-managed setup then i probably would provide it).
-daz