diff --git a/proxy/src/main/java/com/glyart/authmevelocity/proxy/AuthmeVelocityAPI.java b/proxy/src/main/java/com/glyart/authmevelocity/proxy/AuthmeVelocityAPI.java
index 3df16a2..6e8f869 100644
--- a/proxy/src/main/java/com/glyart/authmevelocity/proxy/AuthmeVelocityAPI.java
+++ b/proxy/src/main/java/com/glyart/authmevelocity/proxy/AuthmeVelocityAPI.java
@@ -19,6 +19,7 @@ public final class AuthmeVelocityAPI {
         this.plugin = plugin;
         this.config = config;
     }
+
     /**
      * Check if the player is logged in or not
      * @param player the player
@@ -28,6 +29,15 @@ public final class AuthmeVelocityAPI {
         return plugin.loggedPlayers.contains(player.getUniqueId());
     }
 
+    /**
+     * Check if the player is not logged
+     * @param player the player
+     * @return if the player is not logged
+     */
+    public boolean isNotLogged(@NotNull Player player){
+        return !plugin.loggedPlayers.contains(player.getUniqueId());
+    }
+
     /**
      * Adds a player to the list of logged in players
      * @param player the new logged player
@@ -51,7 +61,7 @@ public final class AuthmeVelocityAPI {
      * @param predicate the condition
      */
     public void removePlayerIf(@NotNull Predicate<Player> predicate){
-        plugin.loggedPlayers.removeIf(uuid -> predicate.test(plugin.getProxy().getPlayer(uuid).orElseThrow()));
+        plugin.loggedPlayers.removeIf(uuid -> predicate.test(plugin.getProxy().getPlayer(uuid).orElse(null)));
     }
 
     /**