Postgres connection terminated unexpectedly

Hi, I have a simple express server using typescript with prisma. I have a postgres database hosted on railway.
I cannot figure why the db connection seems to stop brutally and make the app crash
According to the app logs, it happens at random times.
The error is the following:

uncaughtException: Connection terminated unexpectedly
Error: Connection terminated unexpectedly
    at Connection.<anonymous> (/app/node_modules/pg/lib/client.js:131:73)
    at Object.onceWrapper (node:events:627:28)
    at Connection.emit (node:events:513:28)
    at Socket.<anonymous> (/app/node_modules/pg/lib/connection.js:62:12)
    at Socket.emit (node:events:513:28)
    at TCP.<anonymous> (node:net:322:12)

Is this a known issue ? Am I missing something in the config ?

f9a74fea-b8e0-4256-bdf0-ff786bd5f870

On the database side the log is:

2023-05-24 05:37:51.137 UTC [24574] LOG:  could not receive data from client: Connection reset by peer
2023-05-24 05:37:51.137 UTC [24756] LOG:  could not receive data from client: Connection reset by peer
2023-05-24 05:37:51.137 UTC [24757] LOG:  could not receive data from client: Connection reset by peer
2023-05-24 05:37:51.138 UTC [24755] LOG:  could not receive data from client: Connection reset by peer

are you keeping too many connections open?

I'm following prisma guidelines on this. I don't manually handle connections and let the orm do it. I have only one client shared by my app services. It might use a pool of connections (that's why we see a couple of them on the db logs) instead of just 1.