A. 1. Close other applications: Double-click the Home button (or swipe up from the bottom on newer iPhones) to view all open apps. Swipe up on any apps you are not using to close them. This frees up memory and may help the app run smoother. 2. Restart the app: Force close the Contract Killer 2 app by swiping it up from the app switcher. Then, reopen the app to see if the freezing issue persists. 3. Check for updates: Go to the App Store, tap on your profile icon, and scroll down to see if there are updates available for Contract Killer 2. If there is an update, install it as it may contain bug fixes that resolve freezing issues.

B. 4. Clear cache: Go to Settings > General > iPhone Storage. Find Contract Killer 2 and tap on it. If there is an option to 'Offload App', do that to clear some cache without losing your data. Reinstall the app afterward.