A. 1. Check Internet Connection: Ensure you have a stable internet connection while registering. Switch between Wi-Fi and cellular data if necessary. 2. Verify Information: Double-check that all entered information (email, password, etc.) meets the app’s requirements (e.g., password strength, valid email format).

B. 3. Clear App Cache: Go to Settings > General > iPhone Storage > Circle K. Tap 'Offload App' to clear the cache, then try registering again.