🚀 go-pugleaf

Hello,

I have to create a table of contents of a book of 6 chapters. The table of contents has to be in chapter 2.

Now I open the book, go to add->table of contents.
Then I add the headers.
After that the following window appears:
 <http://img243.imageshack.us/img243/3524/book1hb1.jpg>

Now I click update and this error message pops up:
 <http://img239.imageshack.us/img239/9696/book2dv1.jpg>

What can I do? How can I create a table of contents of a book?

Thank you in advance.

p.s. I have already generated the table of contents of the single chapters and it works

Bye
Verena