diff --git a/app/src/leanback/java/com/fongmi/android/tv/ui/activity/CollectActivity.java b/app/src/leanback/java/com/fongmi/android/tv/ui/activity/CollectActivity.java
index c27b8cdaa..b70e8e1df 100644
--- a/app/src/leanback/java/com/fongmi/android/tv/ui/activity/CollectActivity.java
+++ b/app/src/leanback/java/com/fongmi/android/tv/ui/activity/CollectActivity.java
@@ -124,12 +124,14 @@ public class CollectActivity extends BaseActivity {
     }
 
     private void search() {
+        List<Site> sites = getSites();
+        if (sites.isEmpty()) return;
         mAdapter.add(Collect.all());
         if (mExecutor != null) stop();
         mBinding.pager.getAdapter().notifyDataSetChanged();
-        mExecutor = new PauseExecutor(10);
+        mExecutor = new PauseExecutor(10, sites.size());
         mBinding.result.setText(getString(R.string.collect_result, getKeyword()));
-        for (Site site : getSites()) mExecutor.execute(() -> search(site));
+        for (Site site : sites) mExecutor.execute(() -> search(site));
     }
 
     private void search(Site site) {
diff --git a/app/src/main/java/com/fongmi/android/tv/utils/PauseExecutor.java b/app/src/main/java/com/fongmi/android/tv/utils/PauseExecutor.java
index a23682a25..cbc344349 100644
--- a/app/src/main/java/com/fongmi/android/tv/utils/PauseExecutor.java
+++ b/app/src/main/java/com/fongmi/android/tv/utils/PauseExecutor.java
@@ -1,6 +1,7 @@
 package com.fongmi.android.tv.utils;
 
-import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.ArrayBlockingQueue;
+import java.util.concurrent.RejectedExecutionHandler;
 import java.util.concurrent.ThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.locks.Condition;
@@ -12,8 +13,12 @@ public class PauseExecutor extends ThreadPoolExecutor {
     private final Condition condition;
     private boolean isPaused;
 
-    public PauseExecutor(int corePoolSize) {
-        super(corePoolSize, corePoolSize, 0, TimeUnit.MILLISECONDS, new LinkedBlockingQueue<>());
+    public PauseExecutor(int corePoolSize, int queueCapacity) {
+        this(corePoolSize, queueCapacity, new ThreadPoolExecutor.AbortPolicy());
+    }
+
+    public PauseExecutor(int corePoolSize, int queueCapacity, RejectedExecutionHandler handler) {
+        super(corePoolSize, corePoolSize, 0, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<>(queueCapacity), handler);
         pauseLock = new ReentrantLock();
         condition = pauseLock.newCondition();
     }
@@ -49,5 +54,4 @@ public class PauseExecutor extends ThreadPoolExecutor {
             pauseLock.unlock();
         }
     }
-}
-
+}
\ No newline at end of file
diff --git a/app/src/mobile/java/com/fongmi/android/tv/ui/fragment/CollectFragment.java b/app/src/mobile/java/com/fongmi/android/tv/ui/fragment/CollectFragment.java
index 90739e822..bed174ac7 100644
--- a/app/src/mobile/java/com/fongmi/android/tv/ui/fragment/CollectFragment.java
+++ b/app/src/mobile/java/com/fongmi/android/tv/ui/fragment/CollectFragment.java
@@ -116,10 +116,12 @@ public class CollectFragment extends BaseFragment implements MenuProvider, Colle
     }
 
     private void search() {
+        List<Site> sites = getSites();
+        if (sites.isEmpty()) return;
         if (mExecutor != null) mExecutor.shutdownNow();
-        mExecutor = new PauseExecutor(20);
+        mExecutor = new PauseExecutor(20, sites.size());
         mCollectAdapter.setItems(List.of(Collect.all()), () -> {
-            for (Site site : getSites()) mExecutor.execute(() -> search(site, getKeyword()));
+            for (Site site : sites) mExecutor.execute(() -> search(site, getKeyword()));
         });
     }