Fix NewConnectionError

✅ Solution

NewConnectionError in OpenTelemetry usually indicates a failure to establish a network connection to the configured backend (e.g., OTLP collector). Verify that the backend service is running and accessible from where your application is deployed, paying specific attention to the host, port, and any necessary firewall rules. Additionally, double-check your OpenTelemetry exporter configuration for correctness, ensuring the endpoint URL aligns with your backend's actual address.