Instant Indexing

Hello,

I’m trying to use the Instant Indexing plugin and I configured it according to your guide: “https://rankmath.com/blog/google-indexing-api/”

However, the following error appears:

Update “site”

Error undefined

22:09:38 update: https://afreixo.pt/

{

“readyState”: 4,

“responseText”: “<p>A critical error has occurred on this site.</p><p>Learn more about troubleshooting in WordPress.</p>”,

“Status”: 500,

“statusText”: “error”

}

Can you help me?

Thank you,