Although I downloaded LibreOffice writer, my input becomes all tables of contents by itself . So I cannot use LibreOffice.

Although I downloaded LibreOffice writer, my input becomes all tables of contents by itself when I copy some documents from other apatche document. So I cannot use LibreOffice writer .If I cannot use the fanction of creating tales of contents appropriately, I cannot use LibreOffice writer. How can I stop this move?

I guess you’d better to post your question at https://ask.libreoffice.org/c/english/5, instead of here (is the Japanese page)