editor.store(); fires multiple times

Hi @all, I use my custom code to stop data to server. All works fine, but editor.store(); fires once on first click, twice on second click, three times on third click ... and so on.

var editor = grapesjs.init({
	height: '100%',
	storageManager:{
		autosave: false,
		autoload: false,
		setStepsBeforeSave: 0,
		type: 'remote',
		contentTypeJson: false,
	},
.....

// save to server
cmdm.add('save-db',{
	run: function(editor, sender){
		sender && sender.set('active');
		editor.store();
		editor.on('storage:store', function(e) {
			console.log('Stored ', e);
			console.log(editor.runCommand('gjs-get-inlined-html'));
			var data = e;
			var inline = editor.runCommand('gjs-get-inlined-html');
			$.post(
				URLAPP + 'lib/editor-nl/save-tpl.php',
				{
					'data': data,
					'inlined': inline,
					'tpl-name': $('#panel-tpl-title').val()
				}
			);
		});
	}
});
pnm.addButton('options', {
	id: 'save-db',
	className: 'fa fa-floppy-o',
	command: 'save-db',
	attributes: {
		'title': 'Template speichern',
		'data-tooltip-pos': 'bottom',
	}
});

In storageManager -> type I use 'remote' - if use 'local' , fist click takes no effect. Can anyone help?