Cannot save draft, publish post, switch to text editor.

Hello all,
As my title says, when in the add new post page I cannot save draft, publish post or switch to text editor.

If I try to save or publish a post it just reloads the screen, blank.
The title is saved.

I cannot switch to the text editor (I want to embed a youtube video).

I accidentally wiped my site when in Bluehost two days ago and they (people at Bluehost) reinstalled everything and since then I haven’t been able to post.

I have switched to 2016 theme and deactivated all plugins and none of that work.

Please help. My site is http://www.onelifeonewhistler.com
Thanks
Jimmy