A. Ensure that both your iPhone and the Waterllama app are updated to the latest versions. Go to the App Store, check for updates, and install any available updates for the app and your device's operating system.
B. Try restarting both your iPhone and the Apple Watch. This can help reset any temporary glitches that may be causing performance issues. To restart, press and hold the side button on your iPhone and swipe to power off, then do the same for your Apple Watch.