I want to use get_the_image function with most viewed post widget

Hi friend. I want to show thumbnail with most viewed posts widget in your plugin. Now I am using get the image plugin
here is the url of this plugin
https://www.ads-software.com/extend/plugins/get-the-image/

this plugin uses get_the_image function to get thumbnail. How can I use it with your plugin’s widget?

Please help.

https://www.ads-software.com/extend/plugins/post-views/