PROBLEM! Can't see visual or text editor

I can no longer see the text or visual editor. It was previously working.
Some changes were made to the custom.js, but since they didn't workout, I downloaded the theme again, and replaced the custom.js file in both the parent and child theme. I don't know if this has anything to do with. I deactivated all plugins, and that did not help either. I'm kind of stuck ... need the editors!

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