Command running multiple times

Here is my code snippet.Any help would be really appreciated.

            //Get the default plugin set for all the blocks
            plugins: ['gjs-preset-webpage'],
            pluginsOpts: {
                'gjs-preset-webpage': { /* options */ }
            },

            //Commands
            commands: {
                defaults: [{
                    id: 'publishContent',
                    run: function (editor, senderBtn) {
                        publish(editor.getHtml(), editor.getCss());
                    },
                    stop: function (editor, senderBtn) {},
                }],
            },

        });

 //Manipulate existing panels
        var panelManager = editor.Panels;

        //get Panel Object
        var panelObj = panelManager.getPanel('options');

        //publish button to publish the website
        var publishButton = panelManager.addButton('options', {
            id: 'publish',
            className: 'fa fa-upload',
            command: 'publishContent',
            attributes: {
                title: 'Publish Site'
            },
            active: false,
        });`






Warm regards
Milap