Sometimes you can't see all the tables that have been opened on 4POSTouch. Ensure you log on as a "Manager" & then click on "Waitron" - bottom left. As a manager, you should have the option to view all tables & therefore you will be able to see tables that may have been opened bu waiters, but not yet closed. Click on the table to verify what action you need to take.
Don't just simply void the items on the table as these products have already been printed in the kitchen & prepared! Someone has to take responsibility!
Once all tables have been taken care of, ensure that you have done a cashup on your own / waiter name.
Finally, remember that a table has been opened by a waiter, but cashed off on your (Manager/Owner) name, will be transfered to your name & the outstanding monies due by yourself! - And, of course, possibly over by the waiter!