TableTrack Ideas

I have tried this script for past 1 week. I have faced few issues. Old Order prints sometime (1 or 2 daily) when i print bill it print 2 days and older day bills. Sometimes mismatch on order quantity and amount. Example. I have added 2 Breads on waiter or POS at each Rs.10 so the total amount will be 20. Sometime it printed without quantity or wrong total. (Missing calculate quantity with single price)