A. 1. Force close the app: Double-click the Home button (or swipe up from the bottom of the screen on iPhones without a Home button) to view all open apps. Swipe up on MyCardWallet to close it. Then, reopen the app to see if it loads correctly. 2. Check for updates: Go to the App Store, tap on your profile icon at the top right, and scroll down to see if MyCardWallet has an update available. If so, tap 'Update'. 3. Restart your iPhone: Hold down the power button until you see 'slide to power off'. Turn off your device, wait a few seconds, and turn it back on. This can help clear temporary glitches.

B. 4. Reinstall the app: Delete MyCardWallet by pressing and holding the app icon until it wiggles, then tap the 'X'. Go to the App Store, search for MyCardWallet, and reinstall it. This can resolve issues caused by corrupted files.