So I use Calibre with Stanza (a really old, outdated broken reader, which works for me

)
I've never had a problem. Since the last update, while trying to get a book unto my Ipod, I get the following:
Catalog Error
Error reading catalog data. Please try again later.
I've always used the content server
Calibre Content server says 192.168.1.3:8080
My device says
http://192.168.1.3:8080
Testing the server under preferences/sharing over the net
works, it opens up a list on my libraries in a web browser.
at 127.0.0.1:8080
My firewall, router, antivirus haven't changed. I am at a loss
I have Calibre 3.17.0 64 bit.