fix: improved error msg.

utils/config.go

@@ -274,7 +274,7 @@ func GetDefaultKubeConfig() string {
 	}
 	// check if file exists in kubeconfig
 	if _, err := os.Stat(kubeconfig); os.IsNotExist(err) {
-		logger.Log.Fatalf("$KUBECONFIG is empty and default context cannot be loaded. Please set $KUBECONFIG or use --context flag to proceed.")
+		logger.Log.Fatalf("Error: $KUBECONFIG is not set, and the default Kubernetes context cannot be loaded. The $KUBECONFIG environment variable specifies the kubeconfig file path, which is essential for connecting to your Kubernetes cluster. To resolve this, please set $KUBECONFIG by using 'kubectx' for easier context switching or by manually specifying the path to your kubeconfig file. For detailed instructions on configuring your kubeconfig, please refer to https://kubernetes.io/docs/concepts/configuration/organize-cluster-access-kubeconfig/.")
 	}
 	return kubeconfig
 }