I have a serious problem with the odoo point of sale for restaurants.

In fact I installed the point of sale by activating the hr session to allow employees to connect to the point of sale in order to avoid creating a lot of point of sale but the problem I currently have is that the current orders already sent to the kitchen disappear or even when he validates an order by making the payment the order comes back after a few hours.

The other thing is that when I delete the orders from the tables in the point of sale they still come back even when I close the sessions.

Please help me solve this problem once and for all.

I'm using Odoo16 Community Version