Gunicorn-wsgi-nginx-postgresql-django linode hosting

[Tobi DEGNON]

Hi I need help, I'm hosting a django app on linode, the app is running on Ubuntu 18.04 LTS with gunicorn, nginx a postgresql database, and I'm using let's encrypt for SSL certificate, the issue is when I fill a form (login or signup) I get a timeout error but I don't have that issue on the admin site, when I try login to the admin it works just fine, and I don't have the timeout error on my local machine on the app, this is like the fourth time I'm setting up the whole thing with a different Ubuntu version each time, and I'm having the exact same issue, I made some research and then update timeout for nginx and gunicorn to 300, but it doesn't work, this is the first time I'm hosting a django app on a Linux server and I'm having the worst time of my life, this is a full traceback of the error https://gist.github.com/Tobi-De/38a3badf79bdf9fb0fe45cb0322d6293 , dont't let that EmailAddress.DoesNotExist exception full you, it does exist, I create the account with the createsuperuser command.