Yast and MTA

Hi,

I want to change something in the MTA setup (FQDN mail server name). After changing the Yast says:

Internal error. Please report a bug report with logs. │
│Details: Systemctl command failed: Timeout 30 seconds: LANG=C TERM=dumb COLUMNS=1024 systemctl --no-legend --no-pager --no-ask-password enable ama│
│Caller: /usr/share/YaST2/lib/yast2/systemctl.rb:29:in `rescue in execute’ :\

Any help?