A. 1. Open your device's Settings app. 2. Scroll down and tap on 'Location'. 3. Ensure that Location is turned on. 4. Tap on 'App permissions' and find Google Opinion Rewards. 5. Set the permission to 'Allow all the time' or 'Allow only while using the app'. 6. Restart the app and check if the location services are functioning correctly.

B. 1. Clear the app's cache by going to Settings > Apps > Google Opinion Rewards. 2. Tap on 'Storage', then 'Clear Cache'. 3. Restart your device and open the app again to see if the issue is resolved.