Mailchimp problem

I have a problem with mailchimp. I am using mailchimp as a widget in my woocommerce site.
But when I click on the widget title this error displayed: (function() { window.mc4wp = window.mc4wp || { listeners: [], forms: { on: function(evt, cb) { window.mc4wp.listeners.push( { event : evt, callback: cb } ); } } } })();