diff --git a/packages/bukkit/src/internal/chat.ts b/packages/bukkit/src/internal/chat.ts
index 37e8a3a8..b91fb30c 100644
--- a/packages/bukkit/src/internal/chat.ts
+++ b/packages/bukkit/src/internal/chat.ts
@@ -171,7 +171,7 @@ class BukkitChatInvoke_1_19 extends BukkitChatInvoke_1_18_2 {
         return base.getClass('net.minecraft.network.protocol.game.ClientboundSystemChatPacket')
     }
     getPacketPlayOutChat(sender: any, json: any, type: number) {
-        return new this.PacketPlayOutChat(this.ChatSerializer[this.nmsChatSerializerMethodName](json), type == 0 ? 1 : type)
+        return new this.PacketPlayOutChat(this.ChatSerializer[this.nmsChatSerializerMethodName](json), type)
     }
 }
 
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index 9352dea6..46fa8f34 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -110,7 +110,7 @@ function loadCoreScript(name) {
     try {
         let scriptname = name + (global.debug ? '-debug' : '')
         engineLoad({
-            script: http.get(`https://ms.yumc.pw/api/plugin/download/name/${scriptname}`),
+            script: http.get(`https://mscript.yumc.pw/api/plugin/download/name/${scriptname}`),
             name: `core/${scriptname}.js`
         })
     } catch (error: any) {
diff --git a/packages/plugin/src/manager.ts b/packages/plugin/src/manager.ts
index 1b952982..a74646d7 100644
--- a/packages/plugin/src/manager.ts
+++ b/packages/plugin/src/manager.ts
@@ -226,8 +226,16 @@ export class PluginManagerImpl implements plugin.PluginManager {
         })
     }
 
+    has(name: string) {
+        return this.instanceMap.has(name)
+    }
+
+    get(name: string) {
+        return this.instanceMap.get(name) || null
+    }
+
     getPlugin(name: string) {
-        return this.instanceMap.get(name)
+        return this.instanceMap.get(name) || null
     }
 
     getPlugins() {