Why aren't my website pop-ups functioning correctly?

I have two pop-ups occuring on my website. One is a blank pop-up I’m trying to remove. The second is a discount granted when you sign up for a newsletter. I tested this pop-up and the email address was not added to my list of customers nor was I emailed a discount code. How do I fix this?

Could you please provide your store URL?
Thanks!
@biznazz101

Sure can! It’s https://admin.shopify.com/store/bella-grace-boutique-1985