handle execution error 'NO'

src/dexorder/order/orderstate.py

@@ -178,8 +178,12 @@ class Order:
         if self.is_open:
             Order.open_orders.remove(self.key)
             Order.vault_open_orders.listremove(self.key.vault, self.key.order_index)
+            try:
                 # set final fill values in the status
                 of = Order.order_filled[self.key]
+            except KeyError:
+                log.warning(f'While completing with status {final_state}, no order fills found for {self.key}')
+            else:
                 order_log.debug(f'deleting order_filled[{self.key}]')
                 del Order.order_filled[self.key]
                 status.filledIn = of.filled.filled_in