A. 1. Check Internet Connection: Ensure you have a stable internet connection. Try switching between Wi-Fi and mobile data to see if the issue persists. 2. Clear App Data: Go to your device's settings, find 'Apps', select 'Programming Hub', and tap on 'Storage'. Choose 'Clear Data'. Note that this may reset your app settings and require you to log in again. 3. Sync Manually: If the app allows, try to sync your account manually after performing the above steps. Look for a sync option in the app settings.