Error while adding file header

[pampang]

Traceback (most recent call last):
File "/Applications/Sublime Text.app/Contents/MacOS/sublime_plugin.py", line 168, in reload_plugin
el.on_activated(v)
File "FileHeader in /Users/pampang/Library/Application Support/Sublime Text 3/Installed Packages/FileHeader.sublime-package", line 685, in on_activated
File "FileHeader in /Users/pampang/Library/Application Support/Sublime Text 3/Installed Packages/FileHeader.sublime-package", line 339, in block
File "FileHeader in /Users/pampang/Library/Application Support/Sublime Text 3/Installed Packages/FileHeader.sublime-package", line 337, in _block
File "FileHeader in /Users/pampang/Library/Application Support/Sublime Text 3/Installed Packages/FileHeader.sublime-package", line 594, in update_automatically
File "FileHeader in /Users/pampang/Library/Application Support/Sublime Text 3/Installed Packages/FileHeader.sublime-package", line 298, in get_syntax_type
TypeError: argument of type 'NoneType' is not iterable

device: mac 10.12.2