Bigo Unofficial Support Portal

To fix not receiving Bigo Live notifications, check your phone's settings to ensure notifications are enabled for the app, verify that "Do Not Disturb" is off, and make sure you have the latest version of the Bigo Live app. If the issue persists, you may also need to adjust settings within the Bigo Live app itself.

On your phone's system settings
iOS: Go to Settings > Notifications > Bigo Live and make sure Allow Notifications is toggled on.

Android: Go to Settings > Apps & notifications > Notifications > App settings and ensure notifications are on for Bigo Live. You can also check Settings > Apps & notifications > Recent sent and enable push notifications for Bigo Live if they have been turned off.

Disable Do Not Disturb: Make sure that Do Not Disturb mode is turned off on your phone.
In the Bigo Live app

Within Bigo Live: Check the notification settings inside the app itself to ensure you have the correct types of alerts enabled.

Update the app: Make sure you have the most recent version of the Bigo Live app installed from your device's app store.

Other potential solutions
Restart your phone: A simple restart can often resolve temporary glitches.

Clear the app cache: If you are using an Android device, try clearing the app's cache in your phone's Settings menu under Apps or Apps & notifications.

Check your data and power settings: On Android, check to make sure that power or data saver settings aren't preventing Bigo Live from running in the background to retrieve notifications.