I'm failing to launch it

[asterismo]

If you want to pass parameters, please wrap them in quotes.
./runner.sh: 10: ./runner.sh: svn: not found
INFO Loading config file: config.xml
INFO Logging in as bot@myserver.com/Jabber
INFO Loading plugin admin.
INFO Loading plugin pubsub_browser.
WARNING server property deprecated. Use boundjid.host
Traceback (most recent call last):
File "./sleekbot.py", line 323, in
bot = sleekbot(configFile, auth.attrib['jid'], auth.attrib['pass'], plugin_config=plugin_config)
File "./sleekbot.py", line 51, in init
self.register_bot_plugins()
File "./sleekbot.py", line 101, in register_bot_plugins
loaded = self.registerBotPlugin(plugin.attrib['name'], plugin.find('config'))
File "./sleekbot.py", line 137, in registerBotPlugin
self.botPlugin[pluginname] = getattr(globals()['plugins'].dict[pluginname], pluginname)(self, config)
File "/etc/prosody/sbviki/plugins/pubsub_browser.py", line 35, in init
self.bot.plugin['xep_0050'].addCommand('newleaf', 'Create Leaf', createleaf, self.createLeafHandler, True)
AttributeError: 'xep_0050' object has no attribute 'addCommand'
^C