diff --git a/go.mod b/go.mod
index efd29b4..cc8c911 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/gorilla/websocket v1.5.0
 	github.com/onsi/ginkgo/v2 v2.12.0
 	github.com/onsi/gomega v1.27.10
-	github.com/smartxworks/cloudtower-go-sdk/v2 v2.20.0
+	github.com/smartxworks/cloudtower-go-sdk/v2 v2.21.1-rc.1
 	gopkg.in/yaml.v3 v3.0.1
 	k8s.io/apimachinery v0.27.1
 	k8s.io/client-go v0.27.1
diff --git a/go.sum b/go.sum
index ba7826d..efd58fa 100644
--- a/go.sum
+++ b/go.sum
@@ -339,8 +339,8 @@ github.com/sergi/go-diff v1.1.0/go.mod h1:STckp+ISIX8hZLjrqAeVduY0gWCT9IjLuqbuNX
 github.com/sirupsen/logrus v1.4.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
-github.com/smartxworks/cloudtower-go-sdk/v2 v2.20.0 h1:LUrYplhuaBJlWZuVqnPBDJ8DFDkDeNY42EtC60w/ZyU=
-github.com/smartxworks/cloudtower-go-sdk/v2 v2.20.0/go.mod h1:X6R9+L438SMnLJXykSCV3fJ+AZul0hlyjITsZgrSRtM=
+github.com/smartxworks/cloudtower-go-sdk/v2 v2.21.1-rc.1 h1:9S4v9tbXcaB0ipuCd7xhFY7UVJFD70CnGtbMFQ5Fskw=
+github.com/smartxworks/cloudtower-go-sdk/v2 v2.21.1-rc.1/go.mod h1:X6R9+L438SMnLJXykSCV3fJ+AZul0hlyjITsZgrSRtM=
 github.com/spf13/cobra v0.0.3/go.mod h1:1l0Ry5zgKvJasoi3XT1TypsSe7PqH0Sj9dhYf7v3XqQ=
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
diff --git a/pkg/crcwatch/watch.go b/pkg/crcwatch/watch.go
index 4282d7c..c363230 100644
--- a/pkg/crcwatch/watch.go
+++ b/pkg/crcwatch/watch.go
@@ -52,8 +52,11 @@ func (w *Watch) Start(stopCh <-chan struct{}) {
 		for {
 			select {
 			case err := <-w.crcWatchClient.ErrorChannel():
+				if err == nil {
+					klog.Fatal("crc watch get nil error")
+				}
 				if err.CompactRevision != nil {
-					klog.Fatalf("crc event missed, compacted error : %s", *err.CompactRevision)
+					klog.Fatalf("crc event missed, compacted error : %v, compact revision %s", err, *err.CompactRevision)
 				} else if err.Err != nil {
 					klog.Errorf("crc error event: %v", err)
 					if err.Type == watchor.ErrorEventTypeUnsupported {