blank pdf delivery note and blank pdf invoice

[panne003]

I have installed the VirtueMart 4.2.16 11030. I have migrate from joomla 3 to joomla 4. Every order status works fine, but when my customer uses the post-payment method (achterafbetaal methode) I get a blank invoice and a blank delivery note with no items. Only the head and the foot of the invoice/delivery note. I call the orderstatus "A". And the name "achter afbetalen via billink"

In the old version of virtuemart it works fine, but now in the new a get blank deliverynotes and blank invoice.
Does somebody help me with that?