I figured it out, it’s actually caused by a plugin I installed. It wasn’t compatible with my theme. Try deactivating some of your newly installed plugins. Hope that helps!
If it helps, I’m using the U-design theme
same thing happens to me. to all my posts. with u-design.
http://two4travel.net/best-meal-in-buenos-aires
Here’s a link to the website I’m having the issue on: