[notifications]

**Remember to specify the plugin name in the title!**

### Device / Emulator and OS
Please complete the following information for each phone and/or emulator you're experiencing this bug on:
- Device: [huawei nova 5t]

**NB: Bugs pertaining to old devices/OS versions will likely not be fixed.**
* For iOS only the latest OS is supported.
* For Android, see [the OS versions for which Google support security fixes](https://en.wikipedia.org/wiki/Android_version_history)**

### Describe the bug
E/AndroidRuntime(26844): FATAL EXCEPTION: main E/AndroidRuntime(26844): Process: me.editcraft.twcatchnoti, PID: 26844 E/AndroidRuntime(26844): java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.String java.lang.CharSequence.toString()' on a null object reference
at dk.cachet.notifications.NotificationListener.onNotificationPosted(NotificationListener.java:40)

### To Reproduce
just turn off/on app