diff --git a/bukkit/src/main/java/net/momirealms/customnameplates/bukkit/BukkitNetworkManager.java b/bukkit/src/main/java/net/momirealms/customnameplates/bukkit/BukkitNetworkManager.java
index e660054..2e7aa48 100644
--- a/bukkit/src/main/java/net/momirealms/customnameplates/bukkit/BukkitNetworkManager.java
+++ b/bukkit/src/main/java/net/momirealms/customnameplates/bukkit/BukkitNetworkManager.java
@@ -141,7 +141,9 @@ public class BukkitNetworkManager implements PacketSender, PipelineInjector {
     }
 
     private void uninjectServerChannel(Channel channel) {
-        channel.pipeline().remove(NAMEPLATES_CONNECTION_HANDLER_NAME);
+        if (channel.pipeline().get(NAMEPLATES_CONNECTION_HANDLER_NAME) != null) {
+            channel.pipeline().remove(NAMEPLATES_CONNECTION_HANDLER_NAME);
+        }
     }
 
     @Override
@@ -189,7 +191,9 @@ public class BukkitNetworkManager implements PacketSender, PipelineInjector {
         CNPlayer user = removeUser(channel);
         if (user == null) return;
         channel.eventLoop().submit(() -> {
-            channel.pipeline().remove(NAMEPLATES_PACKET_HANDLER_NAME);
+            if (channel.pipeline().get(NAMEPLATES_PACKET_HANDLER_NAME) != null) {
+                channel.pipeline().remove(NAMEPLATES_PACKET_HANDLER_NAME);
+            }
             return null;
         });
     }
@@ -206,7 +210,9 @@ public class BukkitNetworkManager implements PacketSender, PipelineInjector {
         }
 
         ChannelPipeline pipeline = channel.pipeline();
-        pipeline.remove(NAMEPLATES_PACKET_HANDLER_NAME);
+        if (pipeline.get(NAMEPLATES_PACKET_HANDLER_NAME) != null) {
+            pipeline.remove(NAMEPLATES_PACKET_HANDLER_NAME);
+        }
         for (Map.Entry<String, ChannelHandler> entry : pipeline.toMap().entrySet()) {
             if (Reflections.clazz$NetworkManager.isAssignableFrom(entry.getValue().getClass())) {
                 pipeline.addBefore(entry.getKey(), NAMEPLATES_PACKET_HANDLER_NAME, createHandler(user));
diff --git a/gradle.properties b/gradle.properties
index f6451b8..3506eb9 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,6 +1,6 @@
 # Project settings
 # Rule: [major update].[feature update].[bug fix]
-project_version=3.0.1
+project_version=3.0.2
 config_version=30
 project_group=net.momirealms