You are using an old oTree version
Your otree package is out-of-date (version 2.1.21; latest is 3.3.11). You should upgrade with:
"pip3 install --upgrade otree"
and update your requirements_base.txt.
You are using a proper database (Postgres, MySQL, etc).
DEBUG mode is off
You are using a server other than
Sentry not configured
Sentry can send you the details of each server error by email.
This is necessary because once you have turned off
you will no longer see Django’s yellow error pages;
you or your users will just see generic "500 server error" pages.
oTree offers a free Sentry service;
you can find the sign-up link in the oTree documentation.
No password protection
To prevent unauthorized server access, you should
set the environment variable
Your database appears to be synced.
No worker process found
The worker process enables the following functionality:
- Browser bots
- If your study has timeouts on pages (with
then the timeoutworker will automatically advance a user
when they exceed the timeout,
even if they close their browser.
In your app dashboard, make sure the second dyno is turned on.