For some time (several months?), when I try to use the search feature, I get an error message:
Server Error 500 - Internal server error. There is a problem with the resource you are looking for, and it cannot be displayed.
TODAY, I'm using Firefox, v.111, but this has happened through several versions. I don't have any other browser installed on my new computer yet, but it was giving me an equivalent error on the then-current version of Chrome before my old computer died in February.
I've cleared cache and cookies repeatedly: no effect.