Hello,
Thanks for contacting us, and sorry for any inconvenience that might have been caused due to that.
In order to resolve this issue, please follow the guide below:
https://rankmath.com/kb/fix-403-forbidden-error-indexnow/
Let us know how it goes. Looking forward to helping you.
Thank you.
Hello,
As it’s showing successful, it means the request already have been submitted and no issues should be caused anymore.
You can verify that by checking the history.
If the issue seems to be resolved, please let us know if there’s anything else that we can help you with.
Thank you.
You have to read my initial request again.
The plugin is causing issues on the four websites it was installed.
When the Fast Indexing Plugin is active , and I click publish… It will display critical errors .
So I enable Debug Mode.
This error display.
Fatal error: Uncaught Google\Service\Exception: <!DOCTYPE html> <html lang=en> <meta charset=utf-8> <meta name=viewport content=”initial-scale=1, minimum-scale=1, width=device-width”> <title>Error 403 (Forbidden)!!1</title> <style> *{margin:0;padding:0}html,code{font:15px/22px arial,sans-serif}html{background:#fff;color:#222;padding:15px}body{margin:7% auto 0;max-width:390px;min-height:180px;padding:30px 0 15px}* > body{background:url(//www.google.com/images/errors/robot.png) 100% 5px no-repeat;padding-right:205px}p{margin:11px 0 22px;overflow:hidden}ins{color:#777;text-decoration:none}a img{border:0}@media screen and (max-width:772px){body{background:none;margin-top:0;max-width:none;padding-right:0}}#logo{background:url(//www.google.com/images/branding/googlelogo/1x/googlelogo_color_150x54dp.png) no-repeat;margin-left:-5px}@media only screen and (min-resolution:192dpi){#logo{background:url(//www.google.com/images/branding/googlelogo/2x/googlelogo_color_150x54dp.png) no-repeat 0% 0%/100% 100%;-moz-border-image in /home/punchnewsng/public_html/ejesgist.ng/wp-content/plugins/fast-indexing-api/vendor/google/apiclient/src/Http/REST.php on line 130
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When I uninstalled the plugin.
Everything work normal
Hello,
Can you please confirm if you have tried following this method here?: https://rankmath.com/kb/fix-403-forbidden-error-indexnow/#change-api-key
If you already did and the issue persists, we might need to take a closer look at the settings. Please edit the first post on this ticket and include your WordPress & FTP logins in the designated Sensitive Data section.
Please do take a complete backup of your website before sharing the information with us.

It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:
https://wordpress.org/plugins/temporary-login-without-password/
You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):
https://wordpress.org/plugins/wp-security-audit-log/
We really look forward to helping you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.