Can't launch latest TestFlight beta

Launching the latest TestFlight beta results in the following errors for me: <img width="573" alt="image" src="https://github.com/chockenberry/Notchmeister/assets/1689782/591909e3-d45a-4a6f-9a96-c6481d9dc0c2"> When I launch Notchmeister (either directly or via the "Open" button in TestFlight), it first takes a long while, before the two dialogs pop up. Already tried deleting the app and re-installing it from TestFlight without success. If you need more information (`codesign` details or anything), just let me know.