My ad is not showing in facebook instant article. Will it take time for facebook to crawl it?
My site is wordpress and I install adplugg app. I follow instruction here: https://www.adplugg.com/blog/facebook-instant-article-ads
I took a look at your Facebook Instant Articles feed (it's at http://<your site>/feeds/instant-articles). I then searched for "adplugg" but didn't find adplugg anywhere in your feed. I did however find adplugg on your home page (I right clicked and then did view source and then searched for "adplugg"). So it looks like you have AdPlugg installed but maybe not yet configured correctly for Facebook Instant Articles.
In the instructions that you referenced, please jump to the "Add the Ads to Your Facebook Instant Articles Feed" section and ensure that you've done each step. Also confirm that you've taken the steps in the following section entitled "Select AdPlugg as Your Instant Article Ads Provider". Once you've done all of that, you should be able to see the ads in your feed.
Please let us know how it goes.