diff --git a/app/src/main/java/com/fongmi/bear/ApiConfig.java b/app/src/main/java/com/fongmi/bear/ApiConfig.java
index 59c281f0b..59ff0bd6e 100644
--- a/app/src/main/java/com/fongmi/bear/ApiConfig.java
+++ b/app/src/main/java/com/fongmi/bear/ApiConfig.java
@@ -66,6 +66,10 @@ public class ApiConfig {
     }
 
     public void loadConfig(Callback callback) {
+        if (Prefers.getUrl().isEmpty()) {
+            handler.post(() -> callback.error(""));
+            return;
+        }
         OKHttp.get().client().newCall(new Request.Builder().url(Prefers.getUrl()).build()).enqueue(new Callback() {
             @Override
             public void onResponse(@NonNull Call call, @NonNull Response response) {
@@ -103,7 +107,7 @@ public class ApiConfig {
             if (site.getKey().equals(Prefers.getHome())) setHome(site);
             sites.add(site);
         }
-        if (getHome() == null) {
+        if (home == null) {
             setHome(sites.isEmpty() ? new Site() : sites.get(0));
         }
     }
@@ -115,7 +119,7 @@ public class ApiConfig {
     }
 
     public Spider getCSP(Site site) {
-        return jarLoader.getSpider(site.getApi(), site.getExt());
+        return jarLoader.getSpider(site.getKey(), site.getApi(), site.getExt());
     }
 
     public Object[] proxyLocal(Map<?, ?> param) {
@@ -131,7 +135,8 @@ public class ApiConfig {
     }
 
     public Site getSite(String key) {
-        return sites.get(Math.max(sites.indexOf(Site.get(key)), 0));
+        int index = sites.indexOf(Site.get(key));
+        return index == -1 ? new Site() : sites.get(index);
     }
 
     public List<Site> getSites() {
@@ -139,7 +144,7 @@ public class ApiConfig {
     }
 
     public Site getHome() {
-        return home;
+        return home == null ? new Site() : home;
     }
 
     public void setHome(Site home) {
diff --git a/app/src/main/java/com/fongmi/bear/bean/Site.java b/app/src/main/java/com/fongmi/bear/bean/Site.java
index 5bde1b31c..e56fb0e14 100644
--- a/app/src/main/java/com/fongmi/bear/bean/Site.java
+++ b/app/src/main/java/com/fongmi/bear/bean/Site.java
@@ -1,5 +1,7 @@
 package com.fongmi.bear.bean;
 
+import android.text.TextUtils;
+
 import com.google.gson.annotations.SerializedName;
 
 public class Site {
@@ -30,7 +32,7 @@ public class Site {
     }
 
     public String getKey() {
-        return key;
+        return TextUtils.isEmpty(key) ? "" : key;
     }
 
     public void setKey(String key) {
diff --git a/app/src/main/java/com/fongmi/bear/ui/activity/SettingActivity.java b/app/src/main/java/com/fongmi/bear/ui/activity/SettingActivity.java
index f0144bd6a..1b1b9e896 100644
--- a/app/src/main/java/com/fongmi/bear/ui/activity/SettingActivity.java
+++ b/app/src/main/java/com/fongmi/bear/ui/activity/SettingActivity.java
@@ -75,6 +75,7 @@ public class SettingActivity extends BaseActivity {
     }
 
     private void showSite(View view) {
+        if (ApiConfig.get().getSites().isEmpty()) return;
         int position = ApiConfig.get().getSites().indexOf(ApiConfig.get().getHome());
         DialogSiteBinding bindingDialog = DialogSiteBinding.inflate(LayoutInflater.from(this));
         bindingDialog.site.setLayoutManager(new LinearLayoutManager(this));
diff --git a/app/src/main/java/com/fongmi/bear/utils/Notify.java b/app/src/main/java/com/fongmi/bear/utils/Notify.java
index c618af366..51fe76d4e 100644
--- a/app/src/main/java/com/fongmi/bear/utils/Notify.java
+++ b/app/src/main/java/com/fongmi/bear/utils/Notify.java
@@ -2,6 +2,7 @@ package com.fongmi.bear.utils;
 
 import android.content.Context;
 import android.content.DialogInterface;
+import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.widget.Toast;
@@ -59,6 +60,7 @@ public class Notify {
 
     private void makeText(String message) {
         if (mToast != null) mToast.cancel();
+        if (TextUtils.isEmpty(message)) return;
         mToast = Toast.makeText(App.get(), message, Toast.LENGTH_LONG);
         mToast.show();
         dismiss();
diff --git a/app/src/main/java/com/github/catvod/crawler/JarLoader.java b/app/src/main/java/com/github/catvod/crawler/JarLoader.java
index 21435293b..b64cae4d5 100644
--- a/app/src/main/java/com/github/catvod/crawler/JarLoader.java
+++ b/app/src/main/java/com/github/catvod/crawler/JarLoader.java
@@ -71,13 +71,14 @@ public class JarLoader {
         }
     }
 
-    public Spider getSpider(String key, String ext) {
+    public Spider getSpider(String key, String api, String ext) {
         try {
-            String clsKey = key.replace("csp_", "");
+            api = api.replace("csp_", "");
+            if (spiders.containsKey(key)) return spiders.get(key);
             if (classLoader == null) return new SpiderNull();
-            Spider spider = spiders.containsKey(clsKey) ? spiders.get(clsKey) : (Spider) classLoader.loadClass("com.github.catvod.spider." + clsKey).newInstance();
+            Spider spider = (Spider) classLoader.loadClass("com.github.catvod.spider." + api).newInstance();
             spider.init(App.get(), ext);
-            spiders.put(clsKey, spider);
+            spiders.put(key, spider);
             return spider;
         } catch (Exception e) {
             e.printStackTrace();