Fixes

core/src/main/java/dev/nandi0813/practice/manager/fight/ffa/FFAListener.java

@@ -399,7 +399,10 @@ public void onPlayerDeath(PlayerDeathEvent e) {
         ffa.killPlayer(player, killer, cause.getMessage().replace("%killer%", killer != null ? killer.getName() : "Unknown"));
 
         if (killer != null) {
-            Statistic statistic = ffa.getStatistics().get(killer);
+            Statistic statistic = ffa.getStatistics().computeIfAbsent(
+                    killer,
+                    p -> new Statistic(ProfileManager.getInstance().getUuids().get(p))
+            );
             statistic.setKills(statistic.getKills() + 1);
         }
     }

core/src/main/java/dev/nandi0813/practice/manager/fight/util/KitSelectionHandler.java

@@ -128,22 +128,6 @@ public void showKitChooserOrApplyKit(TeamEnum team) {
                 ItemStack[] inventory = kit.getInventory();
                 ItemStack[] armor = kit.getArmor();
 
-                // Legacy safeguard: old kits may still have armor appended into inventory[36..39].
-                if (inventory != null && inventory.length > 36) {
-                    if (armor == null) {
-                        armor = new ItemStack[]{
-                                inventory[36],
-                                inventory.length > 37 ? inventory[37] : null,
-                                inventory.length > 38 ? inventory[38] : null,
-                                inventory.length > 39 ? inventory[39] : null
-                        };
-                    }
-
-                    ItemStack[] trimmed = new ItemStack[36];
-                    System.arraycopy(inventory, 0, trimmed, 0, 36);
-                    inventory = trimmed;
-                }
-
                 if (armor == null) {
                     armor = ladder.getKitData().getArmor();
                 }

core/src/main/java/dev/nandi0813/practice/manager/gui/guis/customladder/premadecustom/CustomLadderEditorGui.java

@@ -136,18 +136,6 @@ public void update() {
 
         // Load armor BEFORE filler logic to prevent filler items from overwriting armor slots
         ItemStack[] customKitArmor = customKit.getArmor();
-        if (customKitArmor == null) {
-            // Legacy fallback for old kits where armor was appended to inventory[36..39]
-            ItemStack[] customKitInventory = customKit.getInventory();
-            if (customKitInventory != null && customKitInventory.length > 39) {
-                customKitArmor = new ItemStack[]{
-                        customKitInventory[36],
-                        customKitInventory[37],
-                        customKitInventory[38],
-                        customKitInventory[39]
-                };
-            }
-        }
 
         if (customKitArmor == null) {
             customKitArmor = ladder.getKitData().getArmor();