) and verify that the DB_HOST, DB_USER, and DB_PASS match your local or live environment. "Headers Already Sent" Warning : This happens if there is whitespace or an statement before a session_start() : Check for empty lines before the opening tag in your controller or configuration files. Logic Errors in Discounts/Sales
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: Locate the config.php or database.php file in the source directory. Update the hostname, username, password, and database name to match your local setup. ) and verify that the DB_HOST, DB_USER, and