This is XeTeX, Version 3.141592653-2.6-0.999993 (TeX Live 2022/dev/Debian) (preloaded format=xetex 2022.5.2) 27 MAR 2023 11:12 entering extended mode restricted \write18 enabled. %&-line parsing enabled. **title.tex (./title.tex ! Undefined control sequence. l.1 \maketitle The control sequence at the end of the top line of your error message was never \def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct spelling (e.g., `I\hbox'). Otherwise just continue, and I'll forget about whatever was undefined. ) ! Emergency stop. <*> title.tex *** (job aborted, no legal \end found) No pages of output.