Source not displaying

Hi
Your Plugin is exactly what i was searching but it is not showing source on the image.
It works well in the below post
http://www.indispensablesite.com

But in the below post the source are not displayed. (I added the source text and URL for images)

Hope you can find a reason for it…

https://ww.wp.xz.cn/plugins/image-source-control-isc/