It looks like this error is occurring for me as well when I test the game on Windows. I think we forgot to include the necessary files along with the game and just shipped a plain .exe, oops.
I'll update the release here shortly, once I recompile it. In the meantime, you can compile the project yourself with Unity from the repository at https://github.com/chickenspaceprogram/wsu-game-jam-2024.