Does not validate on Save

[Teofilios]

I have noticed that the HTML-HINT does not validate on Save, although I am sure that there are a few errors (that I have made for testing). I have also set up to validate on Change, and then I got this red warning:

"Uncaught TypeError: The "path" argument must be of type string. Received type undefined -- The error was thrown from the htmlhint package. You can help by creating an issue. Please explain what actions triggered this error."

[Enter steps to reproduce:]

1. ...
2. ...

Atom: 1.48.0 x64
Electron: 5.0.13
OS: Debian GNU/Linux
Thrown From: htmlhint package 1.1.4

Stack Trace

Uncaught TypeError: The "path" argument must be of type string. Received type undefined

At internal/validators.js:105

TypeError [ERR_INVALID_ARG_TYPE] [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received type undefined
    at validateString (internal/validators.js:105:11)
    at Object.join (path.js:1037:7)
    at module.exports (/packages/htmlhint/lib/config.coffee:6:43)
    at module.exports (/packages/htmlhint/lib/linter.coffee:19:37)
    at Function.simpleDispatch (/usr/share/atom/resources/app/static/<embedded>:11:1201460)
    at Emitter.emit (/usr/share/atom/resources/app/static/<embedded>:11:1202901)
    at TextBuffer.emitDidStopChangingEvent (/usr/share/atom/resources/app/static/<embedded>:11:505470)
    at later (/usr/share/atom/resources/app/static/<embedded>:14:104700)

Commands

  3x -9:25.1.0 core:move-left (input.hidden-input)
     -9:23.6.0 core:backspace (input.hidden-input)
  3x -9:21 core:save (input.hidden-input)
     -6:15.5.0 core:backspace (input.hidden-input)
  4x -6:05.5.0 core:save (input.hidden-input)
     -6:00.7.0 core:backspace (input.hidden-input)
     -5:54.8.0 core:save (input.hidden-input)
     -0:57.5.0 core:move-left (input.hidden-input)

Non-Core Packages

atom-beautify 0.33.4 
atom-material-syntax 1.0.8 
atom-material-ui 2.1.3 
color-picker 2.3.0 
delete-lines 0.5.0 
file-icons 2.1.41 
htmlhint 1.1.4 
iceberg-syntax 0.2.3 
linter 2.3.1 
linter-htmlhint 1.6.3 
linter-tidy 2.4.0 
linter-ui-default 1.8.1 
markdown-preview-enhanced 0.18.5 
markdown-to-pdf 0.1.1 
material 2.2.0 
minimap 4.29.9 
multi-cursor 3.0.0 
multi-cursor-plus 1.2.0 
solarized-dark-ui 0.3.2 
tidy-html5 0.2.1 
Wild-Cherry 0.10.0