Sure,
Our WordPress is on 5.7
DHL for Woocommerce is on 2.5.3
Woocommerce is on 5.1.0
I think we also just now found the issue, of why it is happening (not that we could fix it).
Your plugin seems to clash with the
Print Invoice & Delivery Notes for WooCommerce plugin
and creates the bug that leads into the white screen.
Though we dont know what kind of bug is triggered there.
But deactivating it gets rid of the issue.
Sadly deactivating it would not be a solution for us, because we need both plugins.
So we really hope that it is a fixable issue.
I hope that information helps.