Hello,
Please delete this part of custom CSS code https://prnt.sc/pxputi
Also, the custom CSS area contains images from our demo, for example, http://prntscr.com/pxpvdw https://xstore.8theme.com/demos/coctails/wp-content/uploads/sites/44/2017/07/subscribe-bg.png You need to change URL of these images by own or delete such custom code.
Regards