TypeError nach Lets Encrypt installation

Hallo,

nach dem ich Let´s Encrypt mit ./letsencrypt-auto --help auf einem owncloud-server installiert habe kam diese Meldung:

An unexpected error occurred:
TypeError: __new__() takes exactly 8 arguments (1 given)
Please see the logfile 'certbot.log' for more details.

ich öffnete die Certbot.log datei mit diesem inhalt:

Traceback (most recent call last):
File "/root/.local/share/letsencrypt/bin/letsencrypt", line 11, in <module>
sys.exit(main())
File "/root/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot/main.py", line 700, in main
plugins = plugins_disco.PluginsRegistry.find_all()
File "/root/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot/plugins/disco.py", line 174, in find_all
plugin_ep = PluginEntryPoint(entry_point)
File "/root/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot/plugins/disco.py", line 33, in __init__
self.plugin_cls = entry_point.load()
File "/root/.local/share/letsencrypt/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2202, in load
return self.resolve()
File "/root/.local/share/letsencrypt/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2208, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "/root/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot/plugins/standalone.py", line 19, in <module>
from certbot.plugins import util
File "/root/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot/plugins/util.py", line 5, in <module>
import psutil
File "/root/.local/share/letsencrypt/local/lib/python2.7/site-packages/psutil/__init__.py", line 1416, in <module>
_last_cpu_times = cpu_times()
File "/root/.local/share/letsencrypt/local/lib/python2.7/site-packages/psutil/__init__.py", line 1411, in cpu_times
return _psplatform.cpu_times()
File "/root/.local/share/letsencrypt/local/lib/python2.7/site-packages/psutil/_pslinux.py", line 254, in cpu_times
return scputimes(*fields)
TypeError: __new__() takes exactly 8 arguments (1 given)


Ich habe leider keinerlei ahnung was ich damit anfangen soll?

Danke für Eure Tips und Eure Hilfe