PO fully invoiced, we trying to match this po with one invoice

Summary:

PO fully invoiced, we are trying to match this PO with one of the invoice, while matching there was no lines getting populated, at search we have unchecked the check boxes, exclude closed schedules and exclude finally closed po, then we saw lines below, and selected from them and entered amount tax, delivery charges manually and trying to validate we got the error, like the process invoice matching or the invoice matching corrections failed because of an error please contact system administrator.

could you please anyone help us to understand why the error passed

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