“Publishing failed. You are probably offline.” Error with Gutenberg

Issue Summary:
I’ve set up a new WordPress website using the following theme and plugins:

• Active Theme: Twenty Twenty-Five
• Active Plugins: Gutenberg and WooCommerce

When I try to create or publish a new page or post, I encounter the error:
“Publishing failed. You are probably offline.”

Additionally, the Full Site Editor fails to load. Checking the browser console, I see the same error:
“Publishing failed. You are probably offline.”

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Steps to Reproduce:

1. Activate the Twenty Twenty-Five theme.
2. Activate the Gutenberg and WooCommerce plugins.
3. Navigate to Posts > Add New or Pages > Add New.
4. Attempt to publish the post/page or access the Full Site Editor.

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Additional Details:

• WordPress Version: 6.7
• PHP Version: 7.4.33
• WooCommerce Version: 9.4.1
• Gutenberg Version: 19.6.2

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Request for Support:

Could you please help me resolve this issue? Is there any configuration I might have missed, or are there known compatibility issues between the Twenty Twenty-Five theme, Gutenberg, and WooCommerce?

Thank you!

• This topic was modified 5 months, 2 weeks ago by Vasantsinh Rajput.