This is pdfTeX, Version 3.141592653-2.6-1.40.26 (TeX Live 2024/Arch Linux) (preloaded format=pdflatex 2024.5.20)  29 MAY 2024 15:41
entering extended mode
 restricted \write18 enabled.
 %&-line parsing enabled.
**"Gecondenseerde verzamelingen.tex"
(/usr/share/texmf-dist/tex/latex/tools/x.tex
LaTeX2e <2023-11-01> patch level 1
L3 programming layer <2024-02-20>

! .
l.38   \batchmode \errmessage{}
                               \csname @@end\endcsname \end
This error message was generated by an \errmessage
command, so I can't give any explicit help.
Pretend that you're Hercule Poirot: Examine all clues,
and deduce the truth by order and method.

 ) 
Here is how much of TeX's memory you used:
 18 strings out of 475403
 512 string characters out of 5776292
 1925187 words of memory out of 5000000
 22268 multiletter control sequences out of 15000+600000
 558069 words of font info for 36 fonts, out of 8000000 for 9000
 395 hyphenation exceptions out of 8191
 12i,0n,13p,114b,8s stack positions out of 10000i,1000n,20000p,200000b,200000s

No pages of output.
PDF statistics:
 0 PDF objects out of 1000 (max. 8388607)
 0 named destinations out of 1000 (max. 500000)
 1 words of extra memory for PDF output out of 10000 (max. 10000000)