I am unable to search using any of the options on
https://en.wikipedia.org/w/index.php?title=Special:Search
This came to my attention when a user reported that they were unable to
search English Wikipedia's help files. It turns out that none of the
"advanced", "everything", "multimedia", or "content
pages" search functions
are working.
All searches return the error "An error has occurred while searching: The
search backend returned an error:"
Pine