Not Working

I’ve downloaded the latest version and added the code within the post for testing, however no ads are appearing. I did check the code on a different blog but its works fine these. Please check. Here is a sample article link: http://thecrazymonks.com/corn-seller-in-bangalore/ . I’ve added a code to appear at the start of the content, but no ads appear.

https://ww.wp.xz.cn/plugins/insert-post-ads/