diff --git a/src/main/java/net/elytrium/limboauth/listener/AuthListener.java b/src/main/java/net/elytrium/limboauth/listener/AuthListener.java
index 7e1cb82d..7df2aa8f 100644
--- a/src/main/java/net/elytrium/limboauth/listener/AuthListener.java
+++ b/src/main/java/net/elytrium/limboauth/listener/AuthListener.java
@@ -35,7 +35,6 @@
 import java.lang.invoke.MethodHandle;
 import java.lang.invoke.MethodHandles;
 import java.sql.SQLException;
-import java.util.Map;
 import java.util.UUID;
 import java.util.concurrent.TimeUnit;
 import net.elytrium.commons.utils.reflection.ReflectionException;
@@ -103,12 +102,12 @@ public void onProxyDisconnect(DisconnectEvent event) {
 
   @Subscribe
   public void onPostLogin(PostLoginEvent event) {
-    Map<UUID, Runnable> postLoginTasks = this.plugin.getPostLoginTasks();
     UUID uuid = event.getPlayer().getUniqueId();
-    if (postLoginTasks.containsKey(uuid)) {
+    Runnable postLoginTask = this.plugin.getPostLoginTasks().remove(uuid);
+    if (postLoginTask != null) {
       // We need to delay for player's client to finish switching the server, it takes a little time.
       this.plugin.getServer().getScheduler()
-          .buildTask(this.plugin, () -> postLoginTasks.get(uuid).run())
+          .buildTask(this.plugin, postLoginTask)
           .delay(Settings.IMP.MAIN.PREMIUM_AND_FLOODGATE_MESSAGES_DELAY, TimeUnit.MILLISECONDS)
           .schedule();
     }