Traceback (most recent call last):
  File "/usr/bin/deluge", line 9, in <module>
    load_entry_point('deluge==1.3.3', 'gui_scripts', 'deluge')()
  File "/usr/lib/python2.7/site-packages/deluge/main.py", line 126, in start_ui
    UI(options, args, options.args)
  File "/usr/lib/python2.7/site-packages/deluge/ui/ui.py", line 134, in __init__
    ui = GtkUI(args)
  File "/usr/lib/python2.7/site-packages/deluge/ui/gtkui/gtkui.py", line 206, in __init__
    self.queuedtorrents = QueuedTorrents()
  File "/usr/lib/python2.7/site-packages/deluge/ui/gtkui/queuedtorrents.py", line 63, in __init__
    self.dialog.set_icon(common.get_logo(32))
  File "/usr/lib/python2.7/site-packages/deluge/ui/gtkui/common.py", line 58, in get_logo
    size, size)
glib.GError: Unrecognized image file format