Facebook Ads Not Delivering

When Facebook shows Ads not delivering, then your creatives has more text.
You can check your creative here

https://www.facebook.com/ads/tools/text_overlay

on this link you can upload your creative and see the whether the ads will run or not see this image.

Now once you upload the image, you can see this. If the image text is high or medium your ad will show facebook ads not delivering.

Now the image text should be 20%. You can check this with this link

http://www.social-contests.com/check-image/

Click on boxes were text is written and see the counting like this

Now the percentage should not increase more than 20%. So you to have check everytime if you doing facebook ads.