ContribucionesMost RecentMost LikesSolutionssyncup app not working When I try to open my syncup kids app, it keeps saying all items core api failing. What can I do? My phone is completely updated. I've uninstalled and reinstalled the app multiple times. syncup app not working Syncup app isn't working. Still says all itemscore api failing. I have rebooted, uninstalled, reinstalled, force stopped, cleared data and cache, and updated phone. Nothing is working.