Hi there! That sounds like a tricky situation with your SmartLife app showing a popup saying "errorTitle" when you try to access the group timer setting. Let’s work through this together.

To get us started, could you let me know if this issue started happening after any recent changes? For example, did you update the app or your Mac's OS recently, or did you change your network setup?

Meanwhile, here are a few basic steps to try which often resolve these app glitches:

1. Force close the SmartLife app on your Mac, then reopen it and try accessing the group timer again.

2. Check for updates: Make sure the SmartLife app itself is updated to the latest version on your Mac or connected device.

3. Restart your Mac to clear temporary caches that might be affecting the app.

If these initial steps don’t help, I can guide you through more in-depth troubleshooting. Let me know how you get on!