> > ! Argument of \oldstylenumerals has an extra }. > > Frans, does \os (instead of \oldstylenumerals) work?
The result is the same, now \os has an extra } according to the log...
The error occurs in the first line of the text body:
%%%%%%%%%%
\titel{Inleiding}
\schrijfnaarlijst[hoofdstuk]{}{Inleiding}
%%%%%%%%%%
Groet!
Frans
