How can I troubleshoot issues with the Certbot Cloudflare plugin failing to add TXT records?

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Grade: Education Subject: Support
How can I troubleshoot issues with the Certbot Cloudflare plugin failing to add TXT records?
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1. Double-check your Cloudflare API token's permissions and validity. 2. Verify the correctness of the `cloudflare.ini` file path. 3. Ensure you're using the latest version of the plugin. 4. Review Certbot's verbose logs (`certbot renew --verbose`) for more specific error messages. 5. Confirm your domain's nameservers are correctly pointed to Cloudflare. 6. Test with `dig` or `nslookup` to see if your DNS settings are propagating correctly.