Perl error when refreshing status of a vm system

To reproduce:
Go to “list managed systems”
Select a system and click on “refresh status”.
After a while the following error is shown.
Undefined subroutine &WebminCore::theme_select_server called at /usr/libexec/webmin/server-manager/mass.cgi line 54.

Howdy,

Hmm, which Cloudmin version is it that you’re using there? And which theme, is that using the Authentic Theme, or the Virtualmin Framed theme?

-Eric

Says 9.0.kvm Pro in version info.
Webmin 1.801
Centos 6.8 x64 with all updates installed.
Using Authentic Theme.