diff --git a/features/state/getstate.go b/features/state/getstate.go
index 2aa21d15..8ac2d6f6 100644
--- a/features/state/getstate.go
+++ b/features/state/getstate.go
@@ -1031,6 +1031,19 @@ func GetEMSState(ip string) *SysState {
 		}
 	}
 
+	CapabilityInt := config.GetYamlConfig().OMC.Capability
+	if CapabilityInt == 0 {
+		CapabilityInt = 5000
+	}
+	snStr := config.GetYamlConfig().OMC.Sn
+	if snStr == "" {
+		snStr = "-"
+	}
+	expiryDateStr := config.GetYamlConfig().OMC.ExpiryDate
+	if expiryDateStr == "" {
+		expiryDateStr = "-"
+	}
+
 	hostName, _ := os.Hostname()
 	dbInfo, _ := dborm.XormGetMySQLVersion()
 	emsState := &SysState{
@@ -1040,9 +1053,9 @@ func GetEMSState(ip string) *SysState {
 		IpAddr:       ipAddrs,
 		Port:         config.GetYamlConfig().Rest[0].Port,
 		Version:      global.Version,
-		Capability:   config.GetYamlConfig().OMC.Capability,
-		SerialNum:    config.GetYamlConfig().OMC.Sn,
-		ExpiryDate:   config.GetYamlConfig().OMC.ExpiryDate,
+		Capability:   CapabilityInt,
+		SerialNum:    snStr,
+		ExpiryDate:   expiryDateStr,
 		HardwareInfo: HardwareInfo{CPUs: getCpuNumber(), Memory: getTotalMemory()},
 		CpuUsage:     *cpuUsage,
 		MemUsage:     *memUsage,