KiwiIRC start Problems

i have install it as this tutorial
https://kiwiirc.com/docs/installing

/KiwiIRC# ./kiwi start -f
internal/fs/utils.js:453
    throw err;
    ^

TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be one of type string, Buffer, or URL. Received type undefined
    at Object.openSync (fs.js:435:3)
    at Object.readFileSync (fs.js:343:35)
    at new module.exports (/root/KiwiIRC/server/weblistener.js:43:22)
    at /root/KiwiIRC/server/kiwi.js:277:18
    at arrayEach (/root/KiwiIRC/node_modules/lodash/index.js:1289:13)
    at Function.<anonymous> (/root/KiwiIRC/node_modules/lodash/index.js:3345:13)
    at Object.<anonymous> (/root/KiwiIRC/server/kiwi.js:251:3)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
root@server114:~/KiwiIRC# pico config.js
root@server114:~/KiwiIRC# ./kiwi start -f
info: Listening on 0.0.0.0:7778 without SSL