If you’re struggling with an error indicating that your WordPress saving of draft failed, there are a few steps you can take to fix the problem. The first thing to try is to refresh your permalinks. If they’re set to the wrong thing, you may receive a 401 Not Authorized response. If that doesn’t fix the problem, you can also try disabling performance. In the permalinks section, check the settings. Make sure they’re set to Post name, not the Post ID. Try updating your posts again, or select another option in the settings.
Another possible reason why you can’t save your draft is that you have installed a plugin that interferes with WordPress’s deletion option. If you’re using a fresh WordPress installation, you’ve probably only installed the Gutenberg editor. However, if you don’t want to install the Gutenberg editor, you can switch back to the classic editor. While this method is more difficult to implement, it does work.