We apologize that the Bark Kids app is not installing on your child’s Pixel. Google made a recent update in December that has affected some Pixel device's ability to install APK files like the Bark Kids app.
The good news is, we have a solution!
On your child's Pixel, open up the
Google Play Store.
Search and install the app APKMirror Installer.
Open the app and select Browse Files.
Select the Bark Kids APK file (something like 6.8.0.apk).
Tap install package.
Allow APK Mirror to install apps from unknown sources.
That should've installed the app! If you need help with setup, here's how to monitor an Android device.