WIDGET_LIKE_LOG_APP

Hi

Just wondered if you could point me in the right direction here?

I just shared a blog post onto my FB and between the time and drop down menu on the FB post are the words WIDGET_LIKE_LOG_APP

If I click on this then it moves to a new page with Misconfigured App
Sorry, WIDGET_LIKE_LOG_APP hasn't been approved for display in App Centre. on it.

I assume this is something I've not done in FB developers....but not too sure how to correct it!!

https://www.facebook.com/communityIsouthport

Thanks
Paul