WordPress block editor document disappeared?

[word_balloon id="2" position="L" size="M" balloon="talk" name_position="under_avatar" radius="true" avatar_border="false" avatar_shadow="false" balloon_shadow="true" avatar_hide="false"]Oh no! The document in the wordpress block editor has disappeared... [/word_balloon]

[word_balloon id="1" position="R" size="M" balloon="talk" name_position="under_avatar" radius="true" avatar_border="false" avatar_shadow="false" balloon_shadow="true" avatar_hide="false"]It's the Document/Block section on the right side of the block editor.[/word_balloon]

[word_balloon id="2" position="L" size="M" balloon="talk" name_position="under_avatar" radius="true" avatar_border="false" avatar_shadow="false" balloon_shadow="true" avatar_hide="false"]That's right. It disappeared when I was messing around with it. [/word_balloon]

[word_balloon id="1" position="R" size="M" balloon="talk" name_position="under_avatar" radius="true" avatar_border="false" avatar_shadow="false" balloon_shadow="true" avatar_hide="false"]It's easy to fix! Let's see the steps! [/word_balloon]

WordPress block editor document disappeared?

This is the "Document/Block" section on the right side of the block editor on the post or page editing screen.
This is a case where the user pressed the "X" button, it disappeared, and the user could not figure out how to get it back.

This is the situation we have reached.

WordPress block editor right side document back

You can easily undo this by clicking the gear icon in the top right.

Back to normal, and relieved.

[word_balloon id="1" position="L" size="M" balloon="talk" name_position="under_avatar" radius="true" avatar_border="false" avatar_shadow="false" balloon_shadow="true" avatar_hide="false"]If you have any questions that you cannot solve on your own, please ask them on Coconala[/word_balloon]

Please feel free to use it.