TypeError: expected string or buffer

[MerKki]

We received the following feedback:
Version: 4.2-2 errata231 (Lesum)

Die Ausführung des Kommandos asteriskDeploy/create ist fehlgeschlagen:

Traceback (most recent call last):
  File "%PY2.7%/univention/management/console/base.py", line 250, in execute
    function.__func__(self, request, *args, **kwargs)
  File "%PY2.7%/univention/management/console/modules/asteriskDeploy/__init__.py", line 64, in create
    log = openLog(server["commonName"])
  File "%PY2.7%/univention/management/console/modules/asteriskDeploy/__init__.py", line 129, in openLog
    servername = re.sub(r"[^a-zA-Z0-9]+", "_", servername)
  File "/usr/lib/python2.7/re.py", line 155, in sub
    return _compile(pattern, flags).sub(repl, string, count)
TypeError: expected string or buffer