Yikes. We just added Android 14 support and Android 15 is already out... Boo. We haven't tested with that at all yet. It is likely something to do with the DJI SDK which the JUST fixed for Android 14 a few days ago.
Aside from maybe trying a different device you could follow the instructions here:
https://support.dronesmadeeasy.com/hc/en-us/articles/10834357320212-Crash-Debugging
And really make sure all other apps are fully closed to make sure all the resources and connections are available to Map Pilot Pro.