diff --git a/appinfo/routes.php b/appinfo/routes.php
index aa334e8..1b448f8 100644
--- a/appinfo/routes.php
+++ b/appinfo/routes.php
@@ -8,7 +8,7 @@ return [
         ['name' => 'main#Download', 'url' => '/new', 'verb' => 'POST'],
         ['name' => 'Aria2#Action', 'url' => '/aria2/{path}', 'verb' => 'POST'],
         ['name' => 'Aria2#getStatus', 'url' => '/status/{path}', 'verb' => 'POST'],
-        ['name' => 'Main#scanFolder', 'url' => '/scanfolder', 'verb' => 'GET'],
+        ['name' => 'Main#scanFolder', 'url' => '/scanfolder', 'verb' => 'POST'],
         ['name' => 'Youtube#Index', 'url' => '/youtube/get', 'verb' => 'POST'],
         ['name' => 'Youtube#Download', 'url' => '/youtube/new', 'verb' => 'POST'],
         ['name' => 'Youtube#Delete', 'url' => '/youtube/delete', 'verb' => 'POST'],
diff --git a/lib/Controller/MainController.php b/lib/Controller/MainController.php
index 85d7e1e..267a756 100644
--- a/lib/Controller/MainController.php
+++ b/lib/Controller/MainController.php
@@ -202,7 +202,8 @@ class MainController extends Controller
      */
     public function scanFolder()
     {
-        $resp = folderScan::sync();
+        $force = $this->request->getParam('force') ?? false;
+        $resp = $force ? folderScan::create()->scan() : folderScan::sync();
         return new JSONResponse($resp);
     }
     /**
diff --git a/lib/Controller/YoutubeController.php b/lib/Controller/YoutubeController.php
index d856f79..f7e02d5 100644
--- a/lib/Controller/YoutubeController.php
+++ b/lib/Controller/YoutubeController.php
@@ -81,10 +81,9 @@ class YoutubeController extends Controller
         $url = trim($this->request->getParam('text-input-value'));
         $yt = $this->youtube;
         if (in_array($this->request->getParam('extension'), $this->audio_extensions)) {
-            $yt->audioOnly = TRUE;
+            $yt->audioOnly = true;
             $yt->audioFormat = $this->request->getParam('extension');
         } else {
-            $yt->audioOnly = FALSE;
             $yt->videoFormat = $this->request->getParam('extension');
         }
         if (!$yt->isInstalled()) {
@@ -158,10 +157,10 @@ class YoutubeController extends Controller
         if (!empty($data['link'])) {
             if (isset($data['ext'])) {
                 if (in_array($data['ext'], $this->audio_extensions)) {
-                    $this->youtube->audioOnly = TRUE;
+                    $this->youtube->audioOnly = true;
                     $this->youtube->audioFormat = $data['ext'];
                 } else {
-                    $this->youtube->audioOnly = FALSE;
+                    $this->youtube->audioOnly = false;
                     $this->youtube->videoFormat = $data['ext'];
                 }
             }
diff --git a/lib/Tools/Youtube.php b/lib/Tools/Youtube.php
index f59ebb3..1ffb021 100644
--- a/lib/Tools/Youtube.php
+++ b/lib/Tools/Youtube.php
@@ -7,9 +7,8 @@ use Symfony\Component\Process\Process;
 
 class Youtube
 {
-    private $ipv4Only;
     public $audioOnly = 0;
-    public $audioFormat = 'm4a', $videoFormat;
+    public $audioFormat = 'm4a', $videoFormat = null;
     private $format = 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best';
     private $options = [];
     private $downloadDir;
@@ -129,7 +128,7 @@ class Youtube
         if ($this->audioOnly) {
             $this->audioMode();
         } else {
-            if ((Helper::ffmpegInstalled()) && ($this->videoFormat != "")) {
+            if (Helper::ffmpegInstalled() && $this->videoFormat) {
                 $this->setOption('--format', 'bestvideo+bestaudio/best');
                 $this->setVideoFormat($this->videoFormat);
             } else {
@@ -145,9 +144,9 @@ class Youtube
         $process->setTimeout($this->timeout);
         $data = ['link' => $url];
         if ($this->audioOnly) {
-           $data['ext'] = $this->audioFormat;
+            $data['ext'] = $this->audioFormat;
         } else {
-           $data['ext'] = $this->videoFormat;
+            $data['ext'] = $this->videoFormat;
         }
         $process->run(function ($type, $buffer) use ($data, $process) {
             if (Process::ERR === $type) {
diff --git a/src/App.vue b/src/App.vue
index 0514638..3b202c4 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -91,7 +91,7 @@ export default {
       let formWrapper = element.closest("form");
       let formData = helper.getData(formWrapper);
       let inputValue = formData["text-input-value"];
-      if (inputValue && inputValue.length < 2) {
+      if (!inputValue || (inputValue && inputValue.length < 2)) {
         helper.error(t("ncdownloader", "Please enter valid keyword!"));
         vm.$data.loading = 0;
         return;
diff --git a/src/actions/buttonActions.js b/src/actions/buttonActions.js
index 3a34812..3b521b2 100644
--- a/src/actions/buttonActions.js
+++ b/src/actions/buttonActions.js
@@ -11,8 +11,9 @@ const buttonHandler = (event, type) => {
     let url = element.getAttribute("path");
     let row, data = {};
     let removeRow = true;
-    if (element.getAttribute("id") == "download-action-button"){
-        helper.getCounters();
+    if (element.getAttribute("id") == "download-action-button") {
+        helper.loop(helper.getCounters);
+        helper.setContentTableType("search-results");
     }
     if (row = element.closest('.table-row-search')) {
         if (element.className == 'icon-clipboard') {
diff --git a/src/index.js b/src/index.js
index a682462..94bf2bd 100644
--- a/src/index.js
+++ b/src/index.js
@@ -81,8 +81,6 @@ window.addEventListener('DOMContentLoaded', function () {
     delegate('#app-ncdownloader-wrapper',
         { target: '[data-tippy-content]' }
     );
-
-
 });
 
 
diff --git a/src/utils/helper.js b/src/utils/helper.js
index c73b888..6786099 100644
--- a/src/utils/helper.js
+++ b/src/utils/helper.js
@@ -16,6 +16,9 @@ const helper = {
         return helper.vue[name];
     },
     generateUrl: generateUrl,
+    loop(callback, delay = 3000, ...args) {
+        Polling.create().setDelay(delay).run(callback, ...args);
+    },
     isPolling() {
         return Polling.create().isEnabled();
     },
@@ -28,10 +31,10 @@ const helper = {
     polling(delay = 1500, path) {
         Polling.create().setDelay(delay).run(helper.refresh, path);
     },
-    scanFolder(path = "/apps/ncdownloader/scanfolder") {
+    scanFolder(forceScan = false, path = "/apps/ncdownloader/scanfolder") {
         let url = helper.generateUrl(path);
         return new Promise((resolve) => {
-            Http.getInstance(url).setMethod('GET').setHandler(function (data) {
+            Http.getInstance(url).setData({ "force": forceScan }).setHandler(function (data) {
                 resolve(data.status);
             }).send();
         });