A. 1. Update the App: Go to the App Store, search for Walgreens, and check if there’s an update available. If so, tap 'Update' to install the latest version, which may fix bugs causing crashes. 2. Clear App Cache: Go to Settings > General > iPhone Storage > Walgreens. Tap 'Offload App' to clear the cache without deleting your data. Reinstall the app afterward to see if it resolves the crashing issue. 3. Restart Your Device: Sometimes, simply restarting your iPhone can resolve temporary glitches that may cause apps to crash. Hold the power button and slide to power off, then turn it back on.

B. 4. Reinstall the App: If the app continues to crash, delete it from your device by pressing and holding the app icon until it wiggles, then tap the 'X'. Reinstall it from the App Store.