A. 1. Update the App: Go to the App Store, search for Circle K, and check if there’s an update available. If so, tap 'Update' to install the latest version which may contain bug fixes. 2. Clear App Cache: Go to your iPhone Settings > General > iPhone Storage > Circle K. Tap 'Offload App' to clear the cache without deleting your data. Then reinstall the app from the App Store.

B. 3. Restart Your Device: Sometimes, simply restarting your iPhone can resolve app crashing issues. Hold down the power button and slide to power off, then turn it back on.