The server responded with a status of 404 (Not Found)

It seems like there might be an issue with the URL path for the Contact Form 7 plugin on your WordPress site. The error indicates that the resource /wp-json/contact-form-7/v1/contact-forms/363/feedback is not found, which suggests that there might be a misconfiguration or a missing component related to the Contact Form 7 plugin.

Here are a few steps you can take to troubleshoot and potentially resolve the issue:

1. Verify Contact Form 7 Configuration: Double-check the configuration of the Contact Form 7 plugin in your WordPress admin dashboard. Ensure that the form with ID 363 exists and is configured correctly. Pay attention to any settings related to AJAX submissions or form actions.

2. Check Plugin Updates: Ensure that both WordPress and the Contact Form 7 plugin are up-to-date. Outdated plugins or core files can sometimes cause compatibility issues and unexpected behavior.

3. Permalinks Settings: Go to the Permalinks settings in your WordPress admin dashboard (Settings -> Permalinks) and try resetting the permalink structure. Sometimes, permalink issues can cause 404 errors for REST API endpoints.

4. .htaccess File: If you're using an Apache server, ensure that the .htaccess file in your WordPress root directory is properly configured and writable. WordPress relies on .htaccess for URL rewriting, so any issues with this file can lead to 404 errors.

5. Check for Plugin or Theme Conflicts: Deactivate all other plugins and switch to a default WordPress theme (e.g., Twenty Twenty-One). Then, try submitting the contact form again. If the issue resolves, reactivate your plugins and theme one by one until the problem reappears. This will help identify if there's a conflict causing the issue.

6. Inspect Network Requests: Use your browser's developer tools to inspect the network requests when you submit the contact form. Look for any errors or unusual responses related to the /wp-json/contact-form-7/v1/contact-forms/363/feedback endpoint.

7. Contact Form 7 Documentation: Check the official Contact Form 7 documentation or support forums for any known issues or troubleshooting steps specific to your situation.

By following these steps, you should be able to identify and resolve the issue causing the 404 error with the Contact Form 7 plugin on your WordPress site. If you're unable to resolve the issue on your own, consider reaching out to the plugin's support channels for further assistance.