Python TypeError "string indices must be integers"

[Unknow0059]

This error showed up after I ran Keymaps from the Command Palette.

Traceback (most recent call last):
  File "./python3.3/threading.py", line 901, in _bootstrap_inner
  File "C:\Users\aliso\AppData\Roaming\Sublime Text 3\Packages\Keymaps\sublime_keymaps.py", line 765, in run
    rendered = list(self.renderer.format(keymaps))
  File "C:\Users\aliso\AppData\Roaming\Sublime Text 3\Packages\Keymaps\sublime_keymaps.py", line 629, in format
    packages = sorted(packages, key=key_func)
  File "C:\Users\aliso\AppData\Roaming\Sublime Text 3\Packages\Keymaps\sublime_keymaps.py", line 438, in extract
    keyMaps = self.getKeymaps()
  File "C:\Users\aliso\AppData\Roaming\Sublime Text 3\Packages\Keymaps\sublime_keymaps.py", line 377, in getKeymaps
    item["context"].append(ctxt["key"])
TypeError: string indices must be integers

"installed_packages": [ "Alignment", "AutoFoldCode", "AutoHotkey", "BracketFlasher", "BracketHighlighter", "Color Scheme - Sleeplessmind", "Compare Side-By-Side", "Delete Current File", "Deselect", "HexViewer", "HTMLBeautify", "ImagePreview", "Increment Selection", "Keymaps", "MarkdownLivePreview", "Monokai Extended", "Monokai++", "MultiEditUtils", "Open in Default Application", "OverrideAudit", "Package Control", "PackageResourceViewer", "PowerShell", "ProjectManager", "Quick File Move", "RandomCase", "RemoveDuplicateLines", "RepeatCommand", "ReverseCharacters", "SortBy", "Sublime Bookmarks", "Sublime Tutor", "Sync View Scroll", "Table Editor", "Terminus", "Trimmer", "VBScript", "WordCount", "XAML" ]