A. If the app is frequently on hold, try closing the app completely and restarting it. This can help refresh the connection. To do this, double-tap the home button (or swipe up from the bottom on newer iPhones) and swipe the app off the screen.
B. Ensure that your internet connection is stable. Switch between Wi-Fi and mobile data to see if the issue persists. If you are on Wi-Fi, try resetting your router.