Problem about command handler

const discord = new CommandoClient({
    token: Token,
    commands: path.join(__dirname, 'prefix-commands'),
    events: path.join(__dirname, 'events'),
    groupCommands: true,
    prefix: prefix,
    owner: Owner,
    defaultHelpCommand: true,
    invite: 'https://discord.gg/some_invite',
    options: {
        maxShards: 'auto',
        disableEveryone: true,
        autoreconnect: true
    }
});

discord.setup();

const discord = new CommandoClient({
    token: Token,
    commands: path.join(__dirname, 'prefix-commands'),
    events: path.join(__dirname, 'events'),
    groupCommands: true,
    prefix: prefix,
    owner: Owner,
    defaultHelpCommand: true,
    invite: 'https://discord.gg/some_invite',
    options: {
        maxShards: 'auto',
        disableEveryone: true,
        autoreconnect: true
    }
});

discord.setup();

Error: TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string or an instance of Buffer or URL. Received undefined

Error: TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string or an instance of Buffer or URL. Received undefined