contextinfo broken probably by gtkbuilder

I'm using exaile 0.3.1+ 2496 build.
If I try to enable the plugin I get this:

Traceback (most recent call last):
  File "/usr/local/lib/exaile/xl/plugins.py", line 115, in enable_plugin
    plugin.enable(self.exaile)
  File "/usr/local/share/exaile/plugins/contextinfo/__init__.py", line 1093, in enable
    exaile_ready()
  File "/usr/local/share/exaile/plugins/contextinfo/__init__.py", line 1085, in exaile_ready
    PANEL = ContextPanel(xlgui.controller().main)
  File "/usr/local/share/exaile/plugins/contextinfo/__init__.py", line 1032, in __init__
    self.init__(parent, _('Context'))
  File "/usr/local/share/exaile/plugins/contextinfo/__init__.py", line 1059, in init__
    self.ui.add_from_file(ui_info[0])
NameError: global name 'ui_info' is not defined
WARNING : Unable to enable plugin contextinfo (xl.plugins)
DEBUG : Exception caught!
Traceback (most recent call last):
  File "/usr/local/lib/exaile/xl/plugins.py", line 115, in enable_plugin
    plugin.enable(self.exaile)
  File "/usr/local/share/exaile/plugins/contextinfo/__init__.py", line 1093, in enable
    exaile_ready()
  File "/usr/local/share/exaile/plugins/contextinfo/__init__.py", line 1085, in exaile_ready
    PANEL = ContextPanel(xlgui.controller().main)
  File "/usr/local/share/exaile/plugins/contextinfo/__init__.py", line 1032, in __init__
    self.init__(parent, _('Context'))
  File "/usr/local/share/exaile/plugins/contextinfo/__init__.py", line 1059, in init__
    self.ui.add_from_file(ui_info[0])
NameError: global name 'ui_info' is not defined
 (xl.plugins)