AWS Elasticbeanstalk Flask 502 error - folder management

Im studying AWS EB and my already done Flask app doesnt work, only 502 error. The app works on my pc but not on aws.

I tried to change the variable 'app' to 'application' and the file name from 'main.py' to 'application.py' as this link suggests but still couldnt find my error.

Folder structure:

• -venv
• --website
• ---static
• ---templates
• ---init.py
• ---auth.py
• ---models.py
• ---views.py
• --application.py
• --requirements.txt

Inside init.py:

from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_login import LoginManager

db = SQLAlchemy()
DB_NAME = 'database.db'

def create_app():
    application = Flask(__name__)
    application.config["SQLALCHEMY_DATABASE_URI"] = f"sqlite:///{DB_NAME}"
    db.init_app(application)
    
    login_manager = LoginManager()
    login_manager.init_app(application)
    login_manager.login_view = 'auth.login'

    from .views import views
    from .auth import auth
    from .models import Note,User

    application.register_blueprint(views,url_prefix='/')
    application.register_blueprint(auth,url_prefix='/')

    with application.app_context():
        db.create_all()
        print('Database created')

    @login_manager.user_loader
    def load_user(id):
        return User.query.get(int(id))
    
    return application

Inside application.py:

from website import create_app

application = create_app()

if __name__=='__main__':
    application.run()

I think its the folder management that Im doing wrong, I tried to eliminate the init and add it to application.py but couldnt make it right. If more infos needed I can give, this is just a personal note app Im trying to do.

source https://stackoverflow.com/questions/75152343/aws-elasticbeanstalk-flask-502-error-folder-management