diff --git a/src/index.ts b/src/index.ts
index 2f5c8c4..d97c4a5 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -52,7 +52,7 @@ program.command('serve').action(async () => {
       await worker.startForK8s();
     }
   } catch (err) {
-    log.error(`[-] Failed to start Worker - ${err.message}`);
+    log.error(`[-] Failed to start Worker - ${JSON.stringify(err)}`);
   }
 });
 
diff --git a/src/manager/worker.ts b/src/manager/worker.ts
index 3543da9..a5b0174 100644
--- a/src/manager/worker.ts
+++ b/src/manager/worker.ts
@@ -650,10 +650,10 @@ export default class WorkerBase {
   /**
    * It is CallBack Function for Watching Pod Information [UPDATE, ADDED].
   */
-  protected podUpdataOrAddCallback = async (data: types.PodInfo) => {
+  protected podUpdateOrAddCallback = async (data: types.PodInfo) => {
     try {
       if (data.labels && data.labels.ainConnect) {
-        log.debug(`[+] podUpdataOrAddCallback podName: ${data.appName}, status:${data.status.phase}`);
+        log.debug(`[+] podUpdateOrAddCallback podName: ${data.appName}, status:${data.status.phase}`);
         await this.writePodStatus(data);
       }
     } catch (err) {
@@ -665,20 +665,28 @@ export default class WorkerBase {
    * It is CallBack Function for Watching Pod Information [DELETE].
   */
   protected podDeleteCallback = async (data: types.PodInfo) => {
-    log.debug(`[+] podDeleteCallback podName: ${data.appName}, status:${data.status}`);
+    log.debug(`[+] podDeleteCallback podName: ${data.appName}, status:${data.status.phase}`);
     // Only information generated through API is removed in redis.
     if (data.labels && data.labels.ainConnect) {
       if (data.labels && data.labels.nfs) {
-        await this.connectSdk.deleteStorageStatus(
-          this.workerInfo.clusterName, data.appName,
-        );
+        try {
+          await this.connectSdk.deleteStorageStatus(
+            this.workerInfo.clusterName, data.appName,
+          );
+        } catch (err) {
+          log.error(`[-] Failed to delete Storage ${err.message}`);
+        }
       } else {
-        await this.connectSdk.deletePodStatus(
-          this.workerInfo.clusterName, data.appName,
-          data.name,
-        );
-        if (this.connectContainerInfo && this.connectContainerInfo[data.appName][data.name]) {
-          delete this.connectContainerInfo[data.appName][data.name];
+        try {
+          await this.connectSdk.deletePodStatus(
+            this.workerInfo.clusterName, data.appName,
+            data.name,
+          );
+          if (this.connectContainerInfo && this.connectContainerInfo[data.appName][data.name]) {
+            delete this.connectContainerInfo[data.appName][data.name];
+          }
+        } catch (err) {
+          log.error(`[-] Failed to delete NodeInfo ${err.message}`);
         }
       }
     }
@@ -689,11 +697,11 @@ export default class WorkerBase {
   */
   protected watchPodInfos() {
     this.k8sApi.makeInformerPod(
-      this.podUpdataOrAddCallback, // ADDED
-      this.podUpdataOrAddCallback, // UPDATE
+      this.podUpdateOrAddCallback, // ADDED
+      this.podUpdateOrAddCallback, // UPDATE
       this.podDeleteCallback, // DELETE
       async () => { // ERROR
-        log.debug('[+] watchPodInfos Error');
+        log.error('[-] watchPodInfos Error');
         // Remove Pod Information on Redis for sync.
         await this.initPodInfo();
       },
diff --git a/src/util/k8s/api.ts b/src/util/k8s/api.ts
index d715036..ed3557e 100644
--- a/src/util/k8s/api.ts
+++ b/src/util/k8s/api.ts
@@ -4,6 +4,9 @@ import * as request from 'request';
 import * as http2 from 'http2';
 import * as util from 'util';
 import * as types from '../../common/types';
+import Logger from '../../common/logger';
+
+const log = Logger.createLogger('util.k8s.api');
 
 const exec = util.promisify(require('child_process').exec);
 
@@ -754,6 +757,10 @@ export default class Api {
         const url = new URL(opts.uri);
         const host = `${url.protocol}//${url.host}`;
         const http2ClientSession = http2.connect(host, { ca: connectionOptions['ca'] });
+        http2ClientSession.on('error', (error) => {
+          log.error(`[-] http2ClientSession error - ${JSON.stringify(error)}`);
+        });
+
         let path = '/api/v1/pods?watch=true';
         if (opts && opts.qs && opts.qs.resourceVersion) {
           path += `&resourceVersion=${opts.qs.resourceVersion}`;
@@ -786,6 +793,7 @@ export default class Api {
         }, 5000);
 
         http2Stream.on('end', () => {
+          log.info('[+] http2Stream ended');
           clearInterval(pingInterval);
           http2ClientSession.close();
           this.informer.off('error', errorHandler);
@@ -794,6 +802,10 @@ export default class Api {
           this.informer.off('delete', deleteHandler);
           this.informer.stop();
         });
+
+        http2Stream.on('error', (error) => {
+          log.error(`[-] http2Stream error - ${JSON.stringify(error)}`);
+        });
         return http2Stream;
       },
     };