Task List Crashes when Icon pressed or menu is accessed

[ramnarayan]

OS specs - Linux Mint 18 Sarah
Device Thinkpad X 220

When I press the Tasklist icon or try and access it from the Menu it reverts with this message

Looks like you found a bug

it then says to report the following information from the box below

Also following some information from the FAQ below this

Last - Am hoping you will be able to rectify this

Thank you

This is zim 0.65
Platform: posix
Locale: en_IN ISO8859-1
FS encoding: UTF-8
Python: (2, 7, 12, 'final', 0)
Gtk: (2, 24, 30)
Pygtk: (2, 24, 0)
Zim revision is:
  branch: zim-trunk
  revision: 805 <email address hidden>
  date: 2015-11-01 15:42:45 +0100

======= Traceback =======
  File "/usr/lib/python2.7/dist-packages/zim/actions.py", line 109, in func
    self.func(instance, *arg, **kwarg)
  File "/usr/lib/python2.7/dist-packages/zim/plugins/tasklist.py", line 428, in show_task_list
    dialog = TaskListDialog.unique(self, self.window, self.index_ext, self.plugin.preferences)
  File "/usr/lib/python2.7/dist-packages/zim/gui/widgets.py", line 2870, in unique
    dialog = klass(*args, **opts)
  File "/usr/lib/python2.7/dist-packages/zim/plugins/tasklist.py", line 654, in __init__
    use_workweek=preferences['use_workweek']
  File "/usr/lib/python2.7/dist-packages/zim/plugins/tasklist.py", line 953, in __init__
    self.refresh()
  File "/usr/lib/python2.7/dist-packages/zim/plugins/tasklist.py", line 971, in refresh
    self._tags[prev[1]] += self._tags[tag[1]]
KeyError: u'Hp'

***
as requested zim -D also below

$ zim -D
INFO: This is zim 0.65
DEBUG: Python version is sys.version_info(major=2, minor=7, micro=12, releaselevel='final', serial=0)
DEBUG: Platform is posix
DEBUG: Zim revision is:
  branch: zim-trunk
  revision: 805 <email address hidden>
  date: 2015-11-01 15:42:45 +0100
DEBUG: Not running from a source dir
DEBUG: Set XDG_DATA_HOME to /home/ram/.local/share
DEBUG: Set XDG_DATA_DIRS to [<Dir: /usr/share/mate>, <Dir: /usr/local/share>, <Dir: /usr/share>, <Dir: /usr/share/mdm>]
DEBUG: Set XDG_CONFIG_HOME to /home/ram/.config
DEBUG: Set XDG_CONFIG_DIRS to [<Dir: /etc/xdg/xdg-mate>, <Dir: /etc/xdg>]
DEBUG: Set XDG_CACHE_HOME to /home/ram/.cache
DEBUG: Loading config from: <zim.notebook.VirtualFile object at 0x7fac515a5ad0>
DEBUG: Loading config from: /home/ram/Notebooks/Notes/notebook.zim
DEBUG: Wrote /home/ram/.config/zim/notebooks.list
INFO: Using default notebook: file:///home/ram/Notebooks/Notes
DEBUG: Wrote /home/ram/Notebooks/Notes/.zim/tmp
INFO: Remove file: /home/ram/Notebooks/Notes/.zim/tmp
DEBUG: Loading config from: /home/ram/Notebooks/Notes/notebook.zim
DEBUG: Cache dir: /home/ram/Notebooks/Notes/.zim
DEBUG: Index database file: /home/ram/Notebooks/Notes/.zim/index.db
DEBUG: Remote call from 13178: <RemoteMethodCall: 13178: zim.ipc.Server(None).ping((), {})>
DEBUG: Remote call returned to 13178: ('ACK', 9912)
DEBUG: Remote call from 13178: <RemoteMethodCall: 13178: zim.ipc.Server(None).has_object((<RemoteObject: zim.gui.GtkInterface(file:///home/ram/Notebooks/Notes)>,), {})>
DEBUG: Remote call returned to 13178: True
DEBUG: Remote call from 13178: <RemoteMethodCall: 13178: zim.gui.GtkInterface(file:///home/ram/Notebooks/Notes).present((), {'geometry': None, 'fullscreen': None, 'page': None})>
DEBUG: Remote call returned to 13178: None