A. 1. Update the App: Go to the App Store, search for Candy simply-Fi, and check if there is an update available. If so, update the app as developers often fix bugs in new releases. 2. Clear Cache: Go to your iPhone Settings > General > iPhone Storage > Candy simply-Fi. If the app allows, clear its cache or delete unnecessary data to free up space. 3. Restart Your iPhone: Sometimes, a simple restart can resolve app crashes. Hold the power button and slide to power off, then turn it back on after a few seconds.

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