Merge pull request #29 from ammodev/fix/npe-inventory-close-when-inventory-null

npe on inventory close when inventory is null

src/main/java/dev/heliosares/auxprotect/spigot/listeners/InventoryListener.java

@@ -47,6 +47,10 @@ public class InventoryListener implements Listener {
     }
 
     private void log(HumanEntity player, Inventory inv, boolean state) {
+        if(inv == null) {
+            return;
+        }
+
         int count = 0;
         for (ItemStack item : inv.getContents()) {
             if (item == null)