Problem during posting of invoice

We found there is no order line when we want to post the invoice as shown below:-

Cannot see the information.

Try to provide more information about your problem.

I would be more worried if you could delete it.

What happens if the quantity parameter is changed to shipped?

Is the customer within credit?

Any customizations on invoice?

No, it changed to delivered. But this is a partial shipment. We are sending 40kg out of 100kg ordered.

The customer within credit. No customization on invoice.