Aaah, now I see Don't really know why though. Might be something related to all moddings you seem to have done. Does it close the window if you tap on where the X-button should be?

Edit: did you install any other apps at the same time with Plastic Theme? Or upgraded an existing one? Try to uninstall devel apps one by one and see if it brings back the rest of the top bar.
You could also try to type this into terminal:
sudo gainroot
killall hildon-status-menu