Found this error in the log. Any thoughts?
Oct 22 21:44:09 Tower nginx: 2019/10/22 21:44:09 [error] 7440#7440: *177121 recv() failed (104: Connection reset by peer) while proxying upgraded connection, client: 192.168.1.3, server: , request: "GET /webterminal/ws HTTP/1.1", upstream: "http://unix:/var/run/ttyd.sock:/ws", host: "192.168.1.9"