The GnuPG e.V. needs a Paypal account to accept payments from members and donations.
Paypal offers some non profit stuff: https://www.paypal.com/us/smarthelp/article/how-can-i-get-my-nonprofit-set-up-with-paypal-to-accept-donations-faq1068 which should be applicable to us.
rainer can you please look into this and try to register the GnuPG e.V. as a paypal entity with non-profit status. Please use the email@example.com Mail address and document any passwords by sending them as encrypted mail to firstname.lastname@example.org
Please note down the status of this and problems in this issue.