The editor has encountered an unexpected error in wordpress post [Solved]

Описание

FIX: “The editor has encountered an unexpected error” in #WordPress after update

The chances are you're getting “The editor has encountered an unexpected error” in WordPress. Block editor throws this error when a plugin or a piece of functionality code in your theme isn't compatible with the Block editor. You can resolve this error by finding the faulty plugin or code in your theme. You can one by one deactivate plugins and check the error or simply install classic editor plugin if you want it urgent :)

Tip: Mostly its conflict with Yoast Seo plugin old version, or duplicate post plugin.