I use the Customizr

I use the Customizr theme. I've installed Hustle to create pop ups for my page. I created one to integrate with MailChimp. I don't think it's working. I have it set to pop up on all posts and 2 pages. I've tested it through an incognito page and I've asked my husband to test it on his computer. I've cleared the cache and still nothing. I looked through the forums but I am a code idiot and I'm having trouble figuring out what to do...