Muhammad, I want to first thank you for your time in helping me permanently solve this issue.
I went to publish and that info was still there.
I deleted the article and cleared my browser and admin cache, then, I created a new newsletter and to my surprise, the issue is still there.
Also, your fix guide, do I need to go to language to find that string?
How can I delete this issue permanently? Do I need to reinstall EasyBlog?
Am I going to have the same issue for my other sites I upgraded?
Thanks again