Inactive document is translated into: "Inaktivt dikument" in the Danish translation. It should have been "Inaktivt dokument" (i->o).
@Leif: one for you, I guess?
Found one string here: https://translations.documentfoundation.org/da/libo_online/translate/loleaflet-ui-da.po#unit=117749641 Fixed in LibreOffice Online.