Best Practice Recommendation For production applications, consider using database migrations (like Alembic) to manage schema changes including index creation, rather than creating them programmatically at startup. This provides better control and tracking of database changes. https://letzshop-google-shopping-product-exports-production.s3.eu-west-1.amazonaws.com/city_zones/strassen/vendors/wizard-cloud-marketing-s-a-r-l/google_shopping/products_fr.csv what are those? INFO: ('192.168.1.125', 53912) - "WebSocket /" 403 INFO: connection rejected (403 Forbidden) INFO: connection closed INFO: 192.168.1.125:53913 - "GET /loginMsg.js HTTP/1.1" 404 Not Found INFO: 192.168.1.125:53914 - "GET /cgi/get.cgi?cmd=home_login HTTP/1.1" 404 Not Found INFO: 192.168.1.125:53915 - "POST /boaform/admin/formTracert HTTP/1.1" 404 Not Found