There could be several reasons why Lovelink closed unexpectedly. Here are suggestions that usually solves issues like crashing or freezing.
1. Try rebooting your device.
2. Try upgrading the operating system on your phone to the latest one.
3. Do not run any other applications in the background while using Lovelink.
4. Select your device settings > WiFi, and then tap your network to forget it. Then reconnect to your WiFi network.
If these do not help, please write us an e-mail with your support key and as many details as possible.