Version 1.6.24 - App Crashes when Phone Locked and an incoming call comes in

### Steps to reproduce

We updated today to latest version 1.6.24. Note we tried this on Four of our phones (Two Pixel 8 Pro, Pixel 7A, Pixel 9). All Failed. We tried with Background Sync and with NTFY push server. We built the app from your code to test it. Same issue. If phones are locked, and a call comes in, you hear the bell for a millisecond, and it goes quiet.

1. Lock Pixel 8 Pro - Call from another device (Pixel 7A or Pixel 9)
2. Pixel 8 Pro rings for a millisecond
3. Unlock the Pixel 8 Pro, open app, it shows app crashed.

NOTE: We use the F-Droid version, as your GPLAY version does not have Background Sync option.

### Outcome

#### What did you expect?
Call to continue to ring, and being able to answer

#### What happened instead?
Call rings for a millisecond or less. Unlocking the phone, and starting the app reveals that app crashed.

### Your phone model

Pixel 8 Pro, Pixel 7 A, Pixel 9

### Operating system version

Android 14 and 15

### Application version and app store

Element version 1.6.24 from F-Droid

### Homeserver

Latest Synapse private server

### Will you send logs?

Yes

### Are you willing to provide a PR?

Yes