TimeOut on callback

[MajuTo]

Describe the bug
Hi guys, everytime I try to deploy this, I have a timeout on the callback.
First time I access the service, I have to set up a login/password and then set my channel name.
After that I have to Authorize twicth, and then I am redirected to url:port/twitch-callback/code=*** and then it always time out.

I must be missing something but can't find what

Here is my .env

POSTGRES_PW=here_a_password
DJANGO_DB_PW=here_another_one
DJANGO_SECRET_KEY=random_secret
PUBLIC_URL=vps.*****.ovh
PORT=5002
TWITCH_WEBHOOK_SECRET=secret_password_again
PROTOCOL=https:
TWITCH_CLIENT_ID=a client id
TWITCH_CLIENT_SECRET=a client secret
USE_NGROCK=False
DEBUG_TWITCH_CALLS=True

Here are callback links on my twitch app :
https://vps.******.ovh:5002/twitch-callback/
https://vps.******.ovh:5002/api/v1/chat-bots/twitch-callback/

Thank you all