After deploying a Python bot to the Heroku server, the databases don't match?

Question

Heroku

After deploying the Python bot to the Heroku server, the bot works normally with the database (displays and changes numbers). But when I went into my database, nothing changed there. Heroku seems to have created its own database and works with it. How can I fix this so that the bot works with my database?
PS before the deployment, the bot worked with my database and everything was fine