My Newsletter Pop Up or any pop up is not working for me on my site.

My Site:http://starlitjewellery.com/

Since I got the product I have not been able to have it work successfully. Some issues with me having two wpmu accounts but i got that sorted and signed in with the correct one. Basically the pop up is active and does not show up anywhere on the site. I have followed all instructions etc, set the settings, activated and nothing. Even safari nothing shows up. I am very exhausted with this plugin and would like help asap with resolving this issue.

Regards,

Nadia