Fix crashes
Traccar SMS Gateway is an Android messaging app. The key difference from other messaging apps is an option to expose HTTP API for sending SMS messages through the phone.
![Logcat [NO ROOT]](https://play-lh.googleusercontent.com/XIppczCkjKa_1n4PIyX-Mdjvwx8ffxNhz8kiRsmyen-GLXo99GKziQZKBfdlG5VQLGdl)
