A. 1. Update the app: Go to the App Store, tap on your profile icon, and check for updates for the Nuts and Bolts app. Installing the latest version can fix bugs that cause crashes. 2. Restart your device: Sometimes, a simple restart can resolve issues with apps crashing. Hold down the power button and slide to power off, then turn your device back on.

B. 3. Free up storage space: Go to Settings > General > iPhone Storage and check if you have enough free space. If your storage is nearly full, delete unnecessary apps, photos, or files to free up space.