Hi, Im using ODOO 13 testing before our store opens. Right now, I'm trying to close a POS session, and I am getting the following error message:

Please set corresponding tax account in each repartition line of the following taxes: Ventas Exentos IVA, Ventas Exentos IVA

Ventas Exentos IVa is a tax I created, before opening the POS session.

When I try to modify the taxes, it says I cant do so if I have an open POS session... So I'm a bit confused...  this session is only a test session, and the tax is just a 0% tax created for products that don't have taxes...

Any help how to close this POS session? thanks in advance

-- Felipe