Failed at the [email protected] start script

[schlos]

NPM was installed via homebrew on Mac (brew install node), version:

node -v
v13.6.0

after executing "$ USER=schlos REPO=foie-graphs TOKEN=OAUTH_GUTHUB_token ALAVETELI=http://imamopravoznati.org npm start" I got error:

...
Fetching http://imamopravoznati.org/request/spisak_clanova_vijeca_i_iznosi_n_10.json with 3 items left in the worker queue.
Fetching http://imamopravoznati.org/request/sudske_odluke_u_predmetima_radi_24.json with 2 items left in the worker queue.
Fetching http://imamopravoznati.org/request/registar_djelatnika_u_zdravstvu_2.json with 1 items left in the worker queue.
Fetching http://imamopravoznati.org/request/sudske_odluke_u_predmetima_radi_25.json with 0 items left in the worker queue.
fs.js:143
  throw new ERR_INVALID_CALLBACK(cb);
  ^

TypeError [ERR_INVALID_CALLBACK]: Callback must be a function. Received undefined
    at maybeCallback (fs.js:143:9)
    at Object.writeFile (fs.js:1267:14)
    at Scraper.<anonymous> (/Users/miroslav/CodeForCroatia/Workspace CFC/imamopravoznati-stats/index.js:38:8)
    at Scraper.emit (events.js:321:20)
    at Scraper.<anonymous> (/Users/miroslav/CodeForCroatia/Workspace CFC/imamopravoznati-stats/lib/scraper.js:18:18)
    at next (/Users/miroslav/CodeForCroatia/Workspace CFC/imamopravoznati-stats/node_modules/async/lib/async.js:726:31)
    at /Users/miroslav/CodeForCroatia/Workspace CFC/imamopravoznati-stats/node_modules/async/lib/async.js:24:16
    at Timeout._onTimeout (/Users/miroslav/CodeForCroatia/Workspace CFC/imamopravoznati-stats/node_modules/underscore/underscore.js:620:47)
    at listOnTimeout (internal/timers.js:549:17)
    at processTimers (internal/timers.js:492:7) {
  code: 'ERR_INVALID_CALLBACK'
}
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] start: `node index.js`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the [email protected] start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

[email protected] start script:
https://github.com/codeforcroatia/imamopravoznati-stats/blob/master/index.js

NPM log:

0 info it worked if it ends with ok
1 verbose cli [
1 verbose cli   '/usr/local/Cellar/node/13.6.0/bin/node',
1 verbose cli   '/usr/local/bin/npm',
1 verbose cli   'start'
1 verbose cli ]
2 info using [email protected]
3 info using [email protected]
4 verbose run-script [ 'prestart', 'start', 'poststart' ]
5 info lifecycle [email protected]~prestart: [email protected]
6 info lifecycle [email protected]~start: [email protected]
7 verbose lifecycle [email protected]~start: unsafe-perm in lifecycle true
8 verbose lifecycle [email protected]~start: PATH: /usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/Users/miroslav/CodeForCroatia/Workspace CFC/imamopravoznati-stats/node_modules/.bin:/Users/miroslav/.rbenv/shims:/Users/miroslav/.rbenv/bin:/Users/miroslav/.rbenv/shims:/Users/miroslav/anaconda3/bin:/Users/miroslav/anaconda3/condabin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/MacGPG2/bin:/Applications/Keybase.app/Contents/SharedSupport/bin
9 verbose lifecycle [email protected]~start: CWD: /Users/miroslav/CodeForCroatia/Workspace CFC/imamopravoznati-stats
10 silly lifecycle [email protected]~start: Args: [ '-c', 'node index.js' ]
11 silly lifecycle [email protected]~start: Returned: code: 1  signal: null
12 info lifecycle [email protected]~start: Failed to exec start script
13 verbose stack Error: [email protected] start: `node index.js`
13 verbose stack Exit status 1
13 verbose stack     at EventEmitter.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:332:16)
13 verbose stack     at EventEmitter.emit (events.js:321:20)
13 verbose stack     at ChildProcess.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:55:14)
13 verbose stack     at ChildProcess.emit (events.js:321:20)
13 verbose stack     at maybeClose (internal/child_process.js:1028:16)
13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:286:5)
14 verbose pkgid [email protected]
15 verbose cwd /Users/miroslav/CodeForCroatia/Workspace CFC/imamopravoznati-stats
16 verbose Darwin 18.7.0
17 verbose argv "/usr/local/Cellar/node/13.6.0/bin/node" "/usr/local/bin/npm" "start"
18 verbose node v13.6.0
19 verbose npm  v6.13.4
20 error code ELIFECYCLE
21 error errno 1
22 error [email protected] start: `node index.js`
22 error Exit status 1
23 error Failed at the [email protected] start script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]

Do you have an idea what could be the problem? NPM version?
It worked until now each year, only change this year is that I have fresh OS and fresh homebrew and fresh NPM install.

Thanks!