invalid length of startup packet when trying to connect to Postgres - postgresql

Question

My Postgres runs on docker, here is the docker-compose.yml:
services:
postgres:
container_name: postgres_dev
image: postgres
environment:
POSTGRES_USER: ${POSTGRES_USER:-postgres}
POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-mypassword}
POSTGRES_DB: postgres
PGDATA: /data/postgres
volumes:
- postgres-dnb-dev:/data/postgres
ports:
- "127.0.0.1:5432:5432"
restart: unless-stopped
volumes:
postgres-dnb-dev:
I use Haproxy to define DNS, my DNS is dev.haproxy.local
When i try to connect to this DNS from my browser(another pc on the same network) i got 502 bad gateway and see in the docker container of postgres log:
PostgreSQL Database directory appears to contain a database; Skipping initialization
2023-02-15 10:10:45.162 UTC [1] LOG: starting PostgreSQL 15.2 (Debian 15.2-1.pgdg110+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 10.2.1-6) 10.2.1 20210110, 64-bit
2023-02-15 10:10:45.162 UTC [1] LOG: listening on IPv4 address "0.0.0.0", port 5432
2023-02-15 10:10:45.162 UTC [1] LOG: listening on IPv6 address "::", port 5432
2023-02-15 10:10:45.164 UTC [1] LOG: listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
2023-02-15 10:10:45.166 UTC [29] LOG: database system was shut down at 2023-02-15 10:10:39 UTC
2023-02-15 10:10:45.169 UTC [1] LOG: database system is ready to accept connections
2023-02-15 10:11:05.175 UTC [33] LOG: invalid length of startup packet
2023-02-15 10:11:05.243 UTC [34] LOG: invalid length of startup packet
It was working the day before, nothing changed on the network.
Does anyone know what is the solution can be?
thanks.