diff --git a/src/at/pcgamingfreaks/Minepacks/Bukkit/Backpack.java b/src/at/pcgamingfreaks/Minepacks/Bukkit/Backpack.java
index 9dfb905..33ee662 100644
--- a/src/at/pcgamingfreaks/Minepacks/Bukkit/Backpack.java
+++ b/src/at/pcgamingfreaks/Minepacks/Bukkit/Backpack.java
@@ -188,6 +188,8 @@ public List<ItemStack> setSize(int newSize)
 		{
 			bp.setItem(i, itemStackArray[i]);
 		}
+		setChanged();
+		save(); // Make sure the new inventory is saved
 		size = newSize;
 		for(Entry<Player, Boolean> e : opened.entrySet())
 		{
diff --git a/src/at/pcgamingfreaks/Minepacks/Bukkit/Listener/DisableShulkerboxes.java b/src/at/pcgamingfreaks/Minepacks/Bukkit/Listener/DisableShulkerboxes.java
index db0e28b..8afe5f8 100644
--- a/src/at/pcgamingfreaks/Minepacks/Bukkit/Listener/DisableShulkerboxes.java
+++ b/src/at/pcgamingfreaks/Minepacks/Bukkit/Listener/DisableShulkerboxes.java
@@ -61,7 +61,7 @@ public void onInventoryClick(InventoryClickEvent event)
 	@EventHandler(ignoreCancelled = true)
 	public void onInventoryOpen(InventoryOpenEvent event)
 	{
-		if(event.getInventory().getHolder().getClass().getName().toLowerCase().contains("shulker"))
+		if(event.getInventory() != null && event.getInventory().getHolder() != null && event.getInventory().getHolder().getClass().getName().toLowerCase().contains("shulker"))
 		{
 			event.setCancelled(true);
 		}