Error when creating new post

Hi!
My site with old EB was hacked.
I cleaned all infected files - and site began displays normal.
But when I trying to create new post - EB displays this:

http://monosnap.com/image/Yvw0V3VEv0M48Kk6dSc7WkJjkLMVGU.png

When I creating creating post in admin panel it displays blank page.

I copied site to local server and updateв EB to 5 version.

But problem still displays.

May be some files was missed?

How to fix it?

Thanks.