Blog page not loading properly

Hi! I got problem with my blog page
https://www.fusiondub.com/blog-2/

It should load the 2 newest blog post or so called “excerpt” then a pagination below and my sidebar on the right-hand side and of course, the footer.

It was working these past few days and suddenly gets back to this problem again.

PS: I am also having problem posting a new blog, The “Visual” tab is not working as well as the pop-up for the media library when I click the small icon on top of the text area.

Thanks in advance!