user register pop-up window issue

[saltwx]

I am experiencing a blank pop-up window after a user registers on my site.  The login and register portion works fine but this blank window is causing concern as I don't know what is supposed to appear in it.    I am unable to get in touch with Weebly support so I REALLY NEED HELP.  My domain is saltwx.com

Screenshot

[Adam7]

Is that what you see after clicking the purchase button? It loads fine for me, although it looks like it's a third party service so we can't really troubleshoot why it isn't loading for you.

[EricM1]

Adam, I had to create a new weebly account because no one can seem to help me find my weebly account info (I am using Weebly Business as a add-on to my Siteground domain hosting) and I needed to login to reply to you post. Since I cannot get in touch with Weebly help without my account info, I was in limbo. 

So, No I am not getting that pop-up after a purchase.  It is occurring after a user registers and is then directed to the members only page.  I don't think this is a product or shopping cart issue as I have removed all items from my pages and still get the blank pop-up following a user registration.  

[Adam7]

Since that site was built using the editor provided through a third party host, I can't really log into your account to troubleshoot. You might want to contact your current host so they can take a look.

[EricM1]

I did that and they told me to contact Weebly.  For the love of God, someone take responsibility for this glitch. 

Weebly tells me it Siteground, Siteground tells me its Weebly.  Clearly there is some type of partnership so someone needs to figure out who is covering this problem.