Untitled

FATAL EXCEPTION: main
    Process: uk.co.psattendant, PID: 17819
    java.lang.NullPointerException: Attempt to invoke virtual method 'void org.apache.cordova.CallbackContext.sendPluginResult(org.apache.cordova.PluginResult)' on a null object reference
    	at com.parksmart.plugin.ParkSmartPlugin$1$1.onChanged(ParkSmartPlugin.java:179)
    	at com.parksmart.plugin.ParkSmartPlugin$1$1.onChanged(ParkSmartPlugin.java:153)
    	at androidx.lifecycle.LiveData.considerNotify(LiveData.java:133)
    	at androidx.lifecycle.LiveData.dispatchingValue(LiveData.java:151)
    	at androidx.lifecycle.LiveData.setValue(LiveData.java:309)
    	at androidx.lifecycle.MutableLiveData.setValue(MutableLiveData.java:50)
    	at androidx.lifecycle.LiveData$1.run(LiveData.java:93)
    	at android.os.Handler.handleCallback(Handler.java:938)
    	at android.os.Handler.dispatchMessage(Handler.java:99)
    	at android.os.Looper.loopOnce(Looper.java:226)
    	at android.os.Looper.loop(Looper.java:313)
    	at android.app.ActivityThread.main(ActivityThread.java:8751)
    	at java.lang.reflect.Method.invoke(Native Method)
    	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:571)
    	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1135)