kolab lm - error traceback

[dsp3]

Hello,
Noticed today that roundcube became unresponsive. Running kolab lm is 
returning this error:

Traceback (most recent call last):
   File "/usr/sbin/kolab", line 39, in <module>
     kolab = Cli()
   File "/usr/lib/python2.6/site-packages/pykolab/cli/__init__.py", line 
64, in __init__
     commands.execute('_'.join(to_execute))
   File "/usr/lib/python2.6/site-packages/pykolab/cli/commands.py", line 
139, in execute
     commands[cmd_name]['function'](conf.cli_args, kw)
   File 
"/usr/lib/python2.6/site-packages/pykolab/cli/cmd_list_mailboxes.py", 
line 82, in execute
     imap.connect()
   File "/usr/lib/python2.6/site-packages/pykolab/imap/__init__.py", line 
121, in connect
     result = urlparse(uri)
   File "/usr/lib64/python2.6/urlparse.py", line 132, in urlparse
     tuple = urlsplit(url, scheme, allow_fragments)
   File "/usr/lib64/python2.6/urlparse.py", line 171, in urlsplit
     i = url.find(':')
AttributeError: 'NoneType' object has no attribute 'find'

Not sure what I have done. Everything was working so well!