Hi,
If you modified your HikaShop order statuses, you have to use the order status that you are using in your shop.
Because if "confirmed" and "shipped" are no more in HikaShop ; I don't think that HikaMarket will work good with wrong (non existing) order statuses in his configuration.
So I don't know what is the order status you use when you "ship" an order, but ; as explained in the documentation, you have to put all valid order statuses in the HikaMarket configuration so it can know when an order is "valid" or "not valid".
If you click on the edit button, you will have a popup with your different order statuses.
Does the documentation text not clear ?
List of HikaShop order statuses which are valid for a vendor.
A valid order would be include in the "pay" list. Default value is "confirmed,shipped" but you could set only "shipped" if just want to pay order which have been shipped by the vendor.
Because if we have to improve it for a better comprehension, it's better to know.
Regards,