Originally Posted by Rowniee
I downloaded you editor but whenever I save I get an error?
It is hard to tell what is causing the error, but I am guessing it is because you have said the book is part of a series, but you have not included a series index as well. Try putting "1" in the "Series index" field and see if the error goes away.
If that is the cause, then I can add a check so that the error is dealt with properly in the future!