dockx crash

orion :: ~ » dockx

** (dockx:12266): WARNING **: Trying to register gtype 'WnckWindowState' as enum when in fact it is of type 'GFlags'

** (dockx:12266): WARNING **: Trying to register gtype 'WnckWindowActions' as enum when in fact it is of type 'GFlags'

** (dockx:12266): WARNING **: Trying to register gtype 'WnckWindowMoveResizeMask' as enum when in fact it is of type 'GFlags'
DockbarX 0.48
DockbarX init
DockbarX reload
Traceback (most recent call last):
  File "/usr/bin/dockx", line 1171, in <module>
    dockx = DockX(monitor)
  File "/usr/bin/dockx", line 486, in __init__
    self.dockbar.load()
  File "/usr/lib/python2.7/site-packages/dockbarx/dockbar.py", line 285, in load
    self.reload()
  File "/usr/lib/python2.7/site-packages/dockbarx/dockbar.py", line 315, in reload
    self.theme = Theme()
  File "/usr/lib/python2.7/site-packages/dockbarx/theme.py", line 123, in __init__
    self.on_theme_changed()
  File "/usr/lib/python2.7/site-packages/dockbarx/theme.py", line 143, in on_theme_changed
    self.reload()
  File "/usr/lib/python2.7/site-packages/dockbarx/theme.py", line 202, in reload
    self.surfaces[d["name"]] = self.load_surface(tar, d["file"])
  File "/usr/lib/python2.7/site-packages/dockbarx/theme.py", line 290, in load_surface
    surface = cairo.ImageSurface.create_from_png(f)
MemoryError