20.02.19 13:13:02.075  MAIN        ( ERROR   ) : Could not get groups for u'root': Traceback (most recent call last):
  File "/usr/sbin/univention-management-console-web-server", line 378, in get_user_groups
    lo = _get_ldap_connection()
  File "/usr/sbin/univention-management-console-web-server", line 84, in _get_ldap_connection
    _get_ldap_connection._lo = getMachineConnection(ldap_master=False)[0]
  File "/usr/lib/pymodules/python2.7/univention/admin/uldap.py", line 171, in getMachineConnection
    lo = univention.uldap.getMachineConnection(start_tls, decode_ignorelist=decode_ignorelist, ldap_master=ldap_master)
  File "/usr/lib/pymodules/python2.7/univention/uldap.py", line 95, in getMachineConnection
    bindpw = open(secret_file).read().rstrip('\n')
IOError: [Errno 2] No such file or directory: '/etc/machine.secret'

20.02.19 13:13:07.165  MAIN        ( PROCESS ) : Client: Setting up SSL configuration failed: [('system library', 'fopen', 'No such file or directory'), ('BIO routines', 'BIO_new_file', 'no such file'), ('x509 certificate routines', 'X509_load_cert_crl_file', 'system lib')]
20.02.19 13:13:07.166  MAIN        ( PROCESS ) : Client: Communication will not be encrypted!
20.02.19 13:13:07.518  MAIN        ( PROCESS ) : SessionClient(0x7fa11c5e5fd0): _authenticated: success=True  status=200  message=None
20.02.19 13:13:07.520  MAIN        ( PROCESS ) : auth_type=None
20.02.19 13:13:09.038  MAIN        ( ERROR   ) : Could not get groups for u'root': Traceback (most recent call last):
  File "/usr/sbin/univention-management-console-web-server", line 378, in get_user_groups
    lo = _get_ldap_connection()
  File "/usr/sbin/univention-management-console-web-server", line 84, in _get_ldap_connection
    _get_ldap_connection._lo = getMachineConnection(ldap_master=False)[0]
  File "/usr/lib/pymodules/python2.7/univention/admin/uldap.py", line 171, in getMachineConnection
    lo = univention.uldap.getMachineConnection(start_tls, decode_ignorelist=decode_ignorelist, ldap_master=ldap_master)
  File "/usr/lib/pymodules/python2.7/univention/uldap.py", line 95, in getMachineConnection
    bindpw = open(secret_file).read().rstrip('\n')
IOError: [Errno 2] No such file or directory: '/etc/machine.secret'

20.02.19 13:13:12.412  MAIN        ( PROCESS ) : CPCommand (172.17.0.1:43236) response status code: 406
20.02.19 13:13:12.412  MAIN        ( PROCESS ) : CPCommand (172.17.0.1:43236) response message: Specified locale is not available
20.02.19 13:13:12.412  MAIN        ( PROCESS ) : CPCommand (172.17.0.1:43236) response result: None
20.02.19 13:13:12.413  MAIN        ( PROCESS ) : CPCommand (172.17.0.1:43236) response error: {'traceback': None, 'command': 'load'}