It looks like you're trying to report an issue with the Nostr protocol's Android app. Sorry to hear that muting people isn't working for you!

To help troubleshoot this issue, could you please provide more details? Here are some questions to consider:

1. **What version of the Nostr protocol's Android app** are you running (you can check in the app's settings or on the Google Play Store)?

2. **When exactly does it "error out"** when trying to mute someone - is there an error message, a crash, or something else?

3. **Can you repro this issue consistently**, or was it just one-time?