Hi,
All of your "free to use" serials where assigned to some non existing orders (with id 25)
pasteboard.co/HSzOsPN.png
So I edit some of serials and remove the order association.
Because, even if a serial is "free to use", if it has an association with an order, only that specific order will be able to receive the serial.
Thanks to that, if an order is "cancel" (or any other action which can remove the serial), you can still get the same serial afterwards if you re-confirm the order.
After the serials modification, I was able to use the "refresh association" button in the order and the association has been made.
The next HikaSerial version will have new features and new improvements.
In the improvements I made a notice message in the backend when you refresh (or try to add a pack) and some association can't be made because there is no serial available.
And I created an bug report in order to display the "order id" instead of the "order number" when a serial is associated with a non existing order.
Regards,