Error when trying to create virtual server

HTTP/1.0 500 Perl execution failed Server: MiniServ/0.01 Date: Tue, 5 May 2009 10:21:58 GMT Content-type: text/html Connection: close
Error - Perl execution failed

Undefined subroutine &virtual_server::list_feature_plugins called at /usr/share/webmin/virtual-server/domain_form.cgi line 232.

This is virtualmin 3.68

uname -a

Linux my.somesite.net 2.6.24-etchnhalf.1-686 #1 SMP Tue Dec 2 07:56:33 UTC 2008 i686 GNU/Linux

Looks like either mismatched Virtualmin and Webmin versions (e.g. an older version of Webmin), or you may just need to restart Webmin, if it failed to restart after the last update.

/etc/init.d/webmin restart