Whenever I install LuckPerms onto my server, I am missing a file compared to a friends server who has the same plugin. In missing this file, it makes it so whenever I make a new group it doesn't seem to actually make it or store the data anywhere. Whenever I do it on the /lp editor website it still doesn't seem to connect with the server. I tried to create the folders and files myself but it didn't seem to read them.

By default, the file where groups and permissions are stored is an h2 file. Hop on to the discord at https://discord.gg/luckperms and we can sort it out real quick :)

Sounds like filesystem permission errors on your host if the files aren't being created automatically.

You can check in console - there should be some more descriptive error messages there if that's the case.