Do you have hexboard installed? You might. To see, make a LaTeX file with \usepackage{hexboard} in the preamble and see if it runs. If you use MiKTeX, it should be that compiling a document that uses the hexboard package will install it for you. If you use TeXLive, you may need to update packages (e.g. `tlmgr install hexboard`).
I wrote a blog post giving some background why we made this and some detail about how to use it here: https://aperiodical.com/2022/02/introducing-hexboard-a-latex-package-for-drawing-games-of-hex/