iCloud Sync is not working. Make sure you have signed into iCloud with the same account on all devices. On iOS, go to Settings → [your name (the very top item)] → iCloud → iCloud Drive. On macOS, go to System Settings → [your name] → iCloud → iCloud Drive. Make sure iCloud Drive is on. On iOS, go to Settings → [your name] → iCloud → (Tap the “Show All” button to go to “Apps using iCloud”) → (Scroll down to find Anybox). On macOS, go to System Settings → [your name] → iCloud → Show More Apps…. Make sure Anybox is on. If the switch for iCloud Drive or Anybox is disabled, it means your device is managed by organization and iCloud is not allowed.