Error on Linux when opening Sublime  #15

Traceback (most recent call last):
  File "/opt/sublime_text_3/sublime_plugin.py", line 74, in reload_plugin
    m = importlib.import_module(modulename)
  File "./importlib/__init__.py", line 90, in import_module
  File "<frozen importlib._bootstrap>", line 1584, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1565, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1532, in _find_and_load_unlocked
  File "/opt/sublime_text_3/sublime_plugin.py", line 678, in load_module
    exec(compile(source, source_path, 'exec'), mod.__dict__)
  File "gitignore_plugin in /home/doubleloop/.config/sublime-text-3/Installed Packages/Gitignored File Excluder.sublime-package", line 229, in <module>
  File "gitignore_plugin in /home/doubleloop/.config/sublime-text-3/Installed Packages/Gitignored File Excluder.sublime-package", line 35, in start
  File "gitignore_plugin in /home/doubleloop/.config/sublime-text-3/Installed Packages/Gitignored File Excluder.sublime-package", line 32, in run
  File "gitignore_plugin in /home/doubleloop/.config/sublime-text-3/Installed Packages/Gitignored File Excluder.sublime-package", line 65, in update_file_exclude_patterns
TypeError: 'NoneType' object is not iterable