You have the latest version of oTree (5.2.4).
DEBUG mode is on You should only use DEBUG mode when testing. Before launching a study, you should switch DEBUG mode off by setting the environment variable OTREE_PRODUCTION.
No password protection To prevent unauthorized server access, you should set the environment variable OTREE_AUTH_LEVEL.
Not using PostgreSQL Your database is sqlite, not postgres. When launching a study, it's recommended to use Postgres.