If an application isn't launching or working, you can try other steps first before removing the app entirely. Try rebooting your TV. You can either turn it off, wait five seconds, and turn it back on, or unplug it, wait, and plug it back in. Either way, a system reboot is a simple step that often works. If rebooting the TV doesn't solve the problem, ensure your Samsung Smart TV has the latest software. 1. Access "Settings," select "Support," then choose "Software Updates." 2. If an update is available, select "Update Now." When the process finishes, try your app again. If it still isn't working, uninstall the app, then re-install it.