Receive form response message in form page

I like receive response message in form page, instead of showing notification message. I add data-alert-type="false" after class="form-widget".

I tried by changing plugins.js at line 425 by this

 let msg = data.message;
 $(form).trigger( 'formSubmitSuccess', msg );

and also change plugins.ajaxform.js at line 120

let msg = data.message;
$(form).trigger( 'formSubmitSuccess', msg );

and tried to receive 'msg' variable like this

$('#modal-feedback').on( 'formSubmitSuccess', function(msg){
     alert(msg);
      setTimeout(function(){
	 $('.modal-feedback-success-modal').magnificPopup('close');
	}, 500);
});

But I did not get response message in formSubmitSuccess function.

Please give me solution.

That works perfectly! Thanks for awesome template. Look forward to the continues updates! Thanks for your quick response. Love your support. Best wishes to SemiColonWeb Team.