Help with nes2midi

[zachevator2019]

When I try to run the nes2midi script on fceux, it gives me this error:

---

...ownloads\fceux-2.6.6-win64\emu2midi-lua\nes2midi.lua:2: module 'base64' not found: no field package.preload['base64'] no file '.\base64.lua' no file 'E:!Downloads\fceux-2.6.6-win64\lua\base64.lua' no file 'E:!Downloads\fceux-2.6.6-win64\lua\base64\init.lua' no file 'E:!Downloads\fceux-2.6.6-win64\base64.lua' no file 'E:!Downloads\fceux-2.6.6-win64\base64\init.lua' no file '.\base64.dll' no file '.\base6451.dll' no file 'E:!Downloads\fceux-2.6.6-win64\base64.dll' no file 'E:!Downloads\fceux-2.6.6-win64\base6451.dll' no file 'E:!Downloads\fceux-2.6.6-win64\clibs\base64.dll' no file 'E:!Downloads\fceux-2.6.6-win64\clibs\base6451.dll' no file 'E:!Downloads\fceux-2.6.6-win64\loadall.dll' no file 'E:!Downloads\fceux-2.6.6-win64\clibs\loadall.dll' stack traceback: [C]: in function 'require' ...ownloads\fceux-2.6.6-win64\emu2midi-lua\nes2midi.lua:2: in main chunk

Is there something I'm doing wrong? Any help would be appreciated.