plugin not working on android 5.1.1

[nipungarg6138]

I tried the plugin and Android 5 it was working fine. But on Android 5.1.1 it is not working. I mean not detecting headset.
Below are the codes.

function plays() {
window.HeadsetDetection.detect(function(detected) {
alert('hi');
window.plugins.insomnia.keepAwake()
cordova.plugins.tonegenerator.play(250)
})

document.addEventListener('deviceready', function() {
window.HeadsetDetection.registerRemoteEvents(function(status) {
switch (status) {
case 'headsetAdded':
// alert('hi');
window.plugins.insomnia.keepAwake()
cordova.plugins.tonegenerator.play(250)
break;
case 'headsetRemoved':
alert('Please connect to Headset/Earpiece then play.');
break;
};
});
}, false);
Any advise what am i doing wrong?
}