npm-gui hang when trying to display global dependencies or Dev dependencies tabs

[gorilla-leo]

OS: OSX High Sierra v. 10.13.6
npm v. 6.4.1
node v. 10.9.0
Browser: Firefox Quantum v. 63.0.1

When I click on Global dependencies or Dev dependencies button npm-gui keeps showing spinners forever and shows these console messages:

npm-gui web-server running at http://localhost:1337/{ Error: ENOENT: no such file or directory, open '�w^~)�/package.json'    at Object.openSync (fs.js:434:3)
    at Object.readFileSync (fs.js:339:35)    at /usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:170880
    at Generator.next (<anonymous>)    at z (/usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:168409)
    at o (/usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:168611)    at /usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:168670
    at new Promise (<anonymous>)
    at /usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:168552
    at L (/usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:171137)
  errno: -2,
  syscall: 'open',
  code: 'ENOENT',
  path: '�w^~)�/package.json' }
{ Error: ENOENT: no such file or directory, open '�w^~)�/package.json'
    at Object.openSync (fs.js:434:3)
    at Object.readFileSync (fs.js:339:35)
    at /usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:168779
    at /usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:168846
    at Generator.next (<anonymous>)
    at z (/usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:168409)
    at o (/usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:168611)
    at /usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:168670
    at new Promise (<anonymous>)
    at /usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:168552
  errno: -2,
  syscall: 'open',
  code: 'ENOENT',
  path: '�w^~)�/package.json' }
Error: [object Object]
    at ChildProcess.s.on (/usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:167021)
    at ChildProcess.emit (events.js:182:13)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:237:12)
    at onErrorNT (internal/child_process.js:406:16)
    at process._tickCallback (internal/process/next_tick.js:63:19)
Error: [object Object]
    at ChildProcess.s.on (/usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:167021)
    at ChildProcess.emit (events.js:182:13)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:237:12)
    at onErrorNT (internal/child_process.js:406:16)
    at process._tickCallback (internal/process/next_tick.js:63:19)
Error: [object Object]
    at ChildProcess.s.on (/usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:167021)
    at ChildProcess.emit (events.js:182:13)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:237:12)
    at onErrorNT (internal/child_process.js:406:16)
    at process._tickCallback (internal/process/next_tick.js:63:19)
TypeError: Cannot read property 'match' of undefined
    at A (/usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:167894)
    at Object.keys.map.e (/usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:180536)
    at Array.map (<anonymous>)
    at /usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:180529
    at Generator.next (<anonymous>)
    at Fe (/usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:179825)
    at o (/usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:180028)
TypeError: Cannot read property 'match' of undefined
    at A (/usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:167894)
    at Object.keys.map.e (/usr/local/lib/node_modules/npm-gui/dist/server/main.js:535:180323)
    at Array.map (<anonymous>)