A. 1. Update the App: Go to the App Store and check for any available updates for the Roku App. Keeping the app updated can fix bugs that cause crashes. 2. Free Up Storage Space: Go to Settings > General > iPhone Storage and check if you have enough free space. If storage is low, delete unused apps or files.

B. 3. Reset Network Settings: Go to Settings > General > Reset > Reset Network Settings. This will reset Wi-Fi networks and passwords, cellular settings, and VPN/APN settings. After resetting, reconnect to your Wi-Fi.