Disable block widget

If you already know your way around WordPress, paste this code into your theme editor.

If you don’t have any experience with it yet, after the codes we have a simple 4 step guide with screenshots for you.

Disable block widget

With this line, you can disable the block widgets:

Disables the block editor from managing widgets.
add_filter( ‘use_widgets_block_editor’, ‘__return_false’ );

Source: WP Code US

Speaking of which, you can use this to disable the “new” Gutenberg editor.

Disable Gutenberg Editor

Disable Gutenberg Editor:

Disables the block editor from managing widgets in the Gutenberg plugin.
add_filter( ‘gutenberg_use_widgets_block_editor’, ‘__return_false’ );

Error: Before / After

Here’s a quick recap of the error you either already have on your WordPress system or will get after updating to WordPress 5.8.

Before: Widget work as always

Update: WordPress 5.8

Then comes your update to version 5.8.

After update: Error over error

After the update, depending on the plugins, error after error. With Multilingual (eg WPML) in e-commerce, it becomes quite extreme. Also, “legacy” texts attaching everywhere, for privacy. To each, individual widget. If you’re not just managing 1 site, but maybe 5, 10 or 20, you’ll want to get back to standard, fast.

What now? This is how you insert the code (above)!

Solution: Code for Theme Editor

Open the “Theme Editor” in the menu. Here you add this code to your “functions.php” as shown in the screenshot.