diff --git a/src/main/java/rina/onepop/club/api/tracker/impl/WindowClickTracker.java b/src/main/java/rina/onepop/club/api/tracker/impl/WindowClickTracker.java
index 7d5f47c..436adab 100644
--- a/src/main/java/rina/onepop/club/api/tracker/impl/WindowClickTracker.java
+++ b/src/main/java/rina/onepop/club/api/tracker/impl/WindowClickTracker.java
@@ -30,9 +30,15 @@ public WindowClickTracker(int windowId, int slotId, int mouseButton, ClickType t
 
     @Override
     public void onPre() {
-        short short1 = player.openContainer.getNextTransactionID(player.inventory);
-        ItemStack itemstack = player.openContainer.slotClick(slotId, mouseButton, type, player);
+        boolean flush = true;
 
-        this.setPacket(new CPacketClickWindow(windowId, slotId, mouseButton, type, itemstack, short1));
+        try {
+            short short1 = player.openContainer.getNextTransactionID(player.inventory);
+            ItemStack itemstack = player.openContainer.slotClick(slotId, mouseButton, type, player);
+
+            this.setPacket(new CPacketClickWindow(windowId, slotId, mouseButton, type, itemstack, short1));
+        } catch (Exception exc) {
+            flush = false;
+        }
     }
-}
+}
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