emesene Exception when ever logged in

when ever i log in to emesene i get this error

Exception
You are using emesene 1.6.1 "mate" so you're free to complain here:
http://forum.emesene.org/index.php/board,19.0.html
Check already existing tickets for duplicates first, please.
Traceback (most recent call last):

  File "/usr/share/emesene/emesenelib/soap/manager.py", line 139, in process
    return process()

  File "/usr/share/emesene/emesenelib/soap/manager.py", line 76, in process
    response.callback(response, *response.args)

  File "/usr/share/emesene/emesenelib/ProfileManager.py", line 152, in onGetProfile
    self.affinityCache = response.body.split('</CacheKey>')[0].split('<CacheKey>')[1]

IndexError: list index out of range