launchctl:
is shown because apachectl
is using launchd
's control script, launchctl
, to start and stop Apache.
Error unloading
means the given daemon/service of launchd
can not be stopped. This usually happens if the given daemon is already stopped.
org.apache.httpd
is the name of the plist file defining how httpd is run by launchd
. If you are curious the actual plist is at
/System/Library/LaunchDaemons/org.apache.httpd.plist
If the server is merely off just use:
sudo apachectl start
to get it running again.
Otherwise I would check system.log (you can use Console.app) and see if there are any, more informative, error messages.