🚀 go-pugleaf

Hi!
I desperately need some advice on an urgent matter. I made a perfekt little .book-file with a table of content at the front of the book.
Then I realized that when i turned it in to a .pdf the table of content ( it is also shown i the left-window when I look at it in acrobat ) is duplicated. The left window show my table of content and it links to the text-rows in the table of content, and then below that it shows the rows of the table of content again, but this time it links to the actuall correct pages.
How can I get rid of this duplication, and just get the correct indexing linking to the pages, but at the same time keeping my table of content in the front of the book?

Kind regards
Veronika D