Could not connect to database

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  1. Open config.php.
  2. Find array of databases.
  3. For your selected database, check host, port, database, username and password.
  4. Check existance of database, for example by using a tool like Adminer.
  5. if not exists, create your database, named as configured, by using your database tool or SQL
    CREATE DATABASE `my_app_db`;
  6. Reload page.