A. 1. Restart your iPhone: Press and hold the power button until you see the slider, then slide to power off. After the device is off, press and hold the power button again until you see the Apple logo. This can clear temporary glitches that may cause the app to crash. 2. Update the app: Open the App Store, tap on your profile icon at the top right, scroll down to see if GoChat Messenger has an update available. If it does, tap 'Update' to install the latest version, which may contain bug fixes. 3. Reinstall the app: Press and hold the GoChat Messenger app icon until it jiggles, then tap the 'X' to delete it. Go to the App Store, search for GoChat Messenger, and reinstall it. This can resolve issues caused by corrupted app data.

B. 4. Check for iOS updates: Go to Settings > General > Software Update. If an update is available, download and install it. Sometimes, app crashes can be related to compatibility issues with the iOS version.