as announced, the next presentation of the Berliner Papyrologisches Kolloquium will take place on Thursday, 12 January 2023 at 18:00 Berlin time 
(you can conveniently convert this to your time for instance here: https://www.thetimezoneconverter.com/)
Johannes Niehoff-Panagiotidis (Berlin): Einblicke in eine byzantinische Gesellschaft: Die Petra-Papyri
You can join with the following link:https://hu-berlin.zoom.us/j/61410068661