Doing a search for my own site has recently started showing a mysterious sitelink below my site's result pointing to a page called "Pagination". The URL it's pointing to is https://mysite.com/index.php?frontpage?frontpage. (my actual site changed to "mysite")
My site consist of about 20 static pages. I do not use any of the blogging features or have any entries.
Currently using Serendipity 2.3.2 and PHP 7.3.8.