Hello,
Thank you for fixing the problem.
I had another one with this plugin and found the reason and the solution and I have a suggestion related to it.
The problem was that after the payment was confirmed by Nochex (using the call back) the status of the order on the site was getting messed up.
This was happening because the new status of the order after the payment was confirmed is hard codded in the plugin to "Confirmed" (notice the capital letter) but in the database the "orderstatus_namekey" field of the "#__hikashop_orderstatus" table was "confirmed" (without the capital letter).
I've modified the parameter in the table and made sure the orders table uses only the new status key.
My suggestion is to add a parameter in the Nochex plugin for the order status after confirmation.
I think this will prevent future problems.
Thank you!