Issue with ssl? bug?

hello,
running reverse proxy on
Description: Ubuntu 22.04 LTS

:~$ openssl version
OpenSSL 3.0.2 15 Mar 2022 (Library: OpenSSL 3.0.2 15 Mar 2022)

and vaultwarden on other box
docker run -d --name vaultwarden -v /home/vw-data:/data -e WEBSOCKET_ENABLED=true -p 10.0.1.219:8050:80 -p 10.0.1.219:3012:3012 --restart on-failure vaultwarden/server:latest

the reverse proxy error log is full of >

2022/08/21 01:09:42 [error] 5638#5638: *370 connect() failed (113: Unknown error) while connecting to upstream, client: 172.98.32.161, server: xxxxxx.duckdns.org, request: "GET / HTTP/1.1", upstream: "http://10.0.1.219:8050/", host: "xxxxx.duckdns.org"
2022/08/21 01:09:42 [crit] 5638#5638: *370 SSL_read() failed (SSL: error:0A000126:SSL routines::unexpected eof while reading) while keepalive, client: 172.98.32.161, server: 0.0.0.0:443

is it connected with ubuntu 22.04 , nginx nginx/1.23.1 · Issue #2438 · phusion/passenger · GitHub

or its because i didnt exported domain name via domain and neither created config.json:

DOMAIN=https://bitwarden.example.com, but your config.json includes "domain": "https://vw.example.com", then

also wondering from where are these IP as 172.98.32.169 coming from … error log is full of strange ip addresses?

using same reverse proxy for nextcloud and all works fine.

thx

upgraded nginx to 1.22
works now.