After update 5.3, all page-edit isn’t opend.

I’ve made and used the wordpress homepage.
And a few hours ago I updated 5.3.
But after updating 5.3, I can’t see pages-edit screen. So I can’t edit pages.
All edit pages are not working.
If I click edit page button from all pages list, only white screen will appear and it won’t work.Especially in chrome. Why?
It works in explorer, but It’s weird and too slow.

The page I need help with: [log in to see the link]