Home page reset

I was using a mobile app, and the company folded, so I installed a new mobile app called Mobile Smart. When I did that, my home page was RESET to the blog page and the blog page is now blank (other than the programmed slider bar).
On the menu my “Home” is still my original Home content, but the main domain is now the blog rather than home.
How do I un-do this?
https://www.eccointernational.com
Thanks!