webmin plugin and error : The Comodo WAF module is not available on your system

CentOS Linux 7.5.1804
Webmin version 1.881

I installed CWAF agent using guideline and getting success message with basic rules setup on terminal
Now when I am trying to access with via webmin -->> servers -->> comodo waf

I gives error that “The Comodo WAF module is not available on your system”

pls help me to sortout where i am making mistake.

Thanks

Hi Mehmood.
https://forums.comodo.com/free-modsecurity-rules-comodo-web-application-firewall/client-agent-updates-t101235.0.html;msg875931#msg875931