Sometimes it happens that a post can’t be shared on Twitter through the sharing buttons on a post or page on HydrogenTechWord.com or GreenSteelWorld.com.
This may have to do with the fact that you use a % character in the Excerpt of your post. See the screenshot below.
When you use the sharing button to share this story on Twitter, Twitter may run into an error 500.
Workaround is to avoid using the % character in your excerpt.
