Webmin and standard modules

Installed Distro FreePBX 5.211.65-6

I’ve installed webmin, as I have done with previous deployments, however, since the change to Generic Linux 2.6, most of the useful webmin modules will not install stating:
Module xxxxxxxxxxx does not support this operating system (Generic Linux 2.6)

Any ideas?

http://www.webmin.com/tgz.html

Go to Operating System and Environment in Webmin Configuration. I changed it back to:

CentOs Linux 6.5
redhat-linux 14.5

Please note it is our official stance that the use of webmin is insecure and poses a serious security danger. We recommend users do NOT install or use webmin on their PBX. Locking this thread for age and because it was resolved with answer #2 and #3.