sickchill stopped working

Sickchill can't seem to connect to DelugeD. This just started happing in the last month or two.

I get these in warnings in the sickchill log:

2019-09-27 04:51:41 WARNING SEARCHQUEUE-MANUAL-xxxxxx :: DelugeD: Unable to send Torrent
2019-09-27 04:51:41 INFO SEARCHQUEUE-MANUAL-75692 :: Downloading (name of download)

Can anyone suggest what to try?

Cheers
Ne