Components with Sightly ; Extension .html Not Rendering the Component

I have a component in my code which uses sightly and  script has the extension as .html

So , script of the component would be like : componentName.html

When I try to render the component , I get the following information from the error.log : 

org.apache.sling.servlets.get.impl.DefaultGetServlet No renderer for extension html, cannot render resource Paragraph, path=/content/XXX/Par/Component

Same component is working fine on the Servers. I must be missing some settings / or component from Felix console not running. 

I see the similar issue for all Sightly component.

Any Suggestions I can try ?