2025-02-02 20:31:31,223 - INFO - Database structure setup completed successfully
2025-02-02 20:31:31,227 - INFO - Initial statistics: {'stocks_count': 0, 'tickers_count': 0, 'active_tickers': 0, 'latest_date': None}
2025-02-02 20:31:43,569 - INFO - Processing updates for 3310 tickers
2025-02-02 20:31:43,570 - ERROR - Error in main execution: name 'StockDataClient' is not defined