diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 277f5cc..4b58fe9 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -17,17 +17,17 @@ jobs:
       matrix:
         node-version: [21.6.1]
         os: [ubuntu-latest]
-        
+
     steps:
     - uses: actions/checkout@v4
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.node-version }}
-        
+
     - run: npm ci
     - run: npm run prod
     - run: npm run semantic-release
-      env: 
+      env:
         NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
\ No newline at end of file
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/__app/component/Scanner/Scanner.js b/__app/component/Scanner/Scanner.js
index 862d7c0..73ca9e0 100644
--- a/__app/component/Scanner/Scanner.js
+++ b/__app/component/Scanner/Scanner.js
@@ -122,15 +122,19 @@ function Scanner({
   };
 
   const toggleFlash = async (close) => {
-    const track = mediaStream.getVideoTracks()[0];
-    try {
-      await track.applyConstraints({
-        advanced: [{ torch: close === false ? false : !flash }],
-      });
-      setFlash((s) => (close === false ? false : !s));
-    } catch (error) {
-      return handleError({ msgType: 'FLASH_UPSUPPORTED', msg: failureMsg.flashUnsupported, failureCb });
+    if (mediaStream) {
+      const track = mediaStream.getVideoTracks()[0];
+      try {
+        await track.applyConstraints({
+          advanced: [{ torch: !flash }],
+        });
+        setFlash((s) => (close === false ? false : !s));
+      } catch (error) {
+        return handleError({ msgType: 'FLASH_UPSUPPORTED', msg: failureMsg.flashUnsupported, failureCb });
+      }
+      return true;
     }
+
     return true;
   };
 
@@ -147,7 +151,7 @@ function Scanner({
     cancelAnimationFrame(videoUnmount);
     stopStreaming();
     clearTimeout(unmoutRenderLoop);
-    toggleFlash(false);
+    if (flash) toggleFlash(false);
     facingMode = 'back';
   };
 
diff --git a/__app/component/services/handlerService.js b/__app/component/services/handlerService.js
index 1bc5807..e5c9e6b 100644
--- a/__app/component/services/handlerService.js
+++ b/__app/component/services/handlerService.js
@@ -3,7 +3,7 @@ export const handleSuccess = ({ msg, msgType, successCb, data }) => {
     msgType,
     msg,
     data,
-    status: 'SUCCESS SUCCESS SUCCESS SUCCESS SUCCESS SUCCESS SUCCESS',
+    status: 'SUCCESS',
   };
   console.table('%c SUCCESS::%s', 'color: green; font-size: 20px', '', rtn);
   successCb(rtn);