Though goods receipt / inbound delivery exists but still you get an exception in the supplier invoice.
SAP Business ByDesign
The inbound delivery is already returned that is Outbound delivery is already done and thus there is no inbound delivery available for the invoice.
You should reverse the outbound delivery(create an adjustment confirmation) then post the invoice and then you can create new outbound delivery again.
You can accept the exception in the invoice and post it.
Unable to create invoice , KBA , AP-SIP-SIV , Supplier Invoice , Problem