Can`t enable APP notifications on Galaxy A53

Hi, Ive an A53 and the german banking app SpardaApp. I can not switch on the push notifications for the this app in the system setting. Ireinstalled the app, cleared data and cache an restarted the device. No change. SW UI 5.1 Android 13 Kernel Version is 5.10.136. Is this a problem of the mobile device or of the app?

Hi Siggi,
this is a bioinformatics forum for Galaxy servers, not Samsung phones.
Kind regards,