If only "some" cafeteria opening times are provided by the backend, the cafeteria module crashes entirely

I just added "monday" for "Mensa OBS" -> works fine but for every other cafeteria that has no opening/eating times, errors are thrown. https://sentry.tinycampus.de/share/issue/e819117d94314ec4a53bea992ad2c3d2/

Samsung Galaxy S8 -> App Closes!
Samsung Galaxy S10 -> Only the Mensa Header Card of "Mensa OBS" is shown, others are not even displayed. Error is probably there
iPhone XR -> Also Crashes with Dialog, same behaviour as S10