Hi there! I understand you're having trouble sending a reply to a buyer interested in your item on the VarageSale app. To better assist you, could you please tell me if you see any error message when you try to send the reply? Also, are you using the app or the web version on your Android device?

In the meantime, here are some steps you can try to hopefully resolve this:

1. Make sure your VarageSale app is updated to the latest version from the Google Play Store. Sometimes messaging issues are fixed in app updates.

2. Ensure you have a stable internet connection, as messaging requires online access.

3. Restart the app completely by closing it from the recent apps and opening it again.

4. Try to go to the interested buyer's profile by tapping their name or picture, then tap the "Message" button to send your reply directly. This sometimes helps bypass messaging glitches3.

5. If you tried replying within a conversation thread and it fails, try starting a new message instead.

Could you please try those and let me know if any messages go through or if you encounter any specific error? That will help me guide you further.

Are you satisfied with this initial guidance?