I too am having problems with the upnp plugin.

starting canola with -v -v returns:

DBG_E plugin_manager:163:_load_plugins() [No module named canola-upnp.upnp.model] while loading plugin 'UPnP Model', skipping it ...
ImportError: No module named canola-upnp.upnp.model

It appears that the upnp plugin is not yet compatible with the 'new' canola. Any chance of an updated version?
(It's a shame, really, upnp is the thing I use the most in canola.)