[SOLVED] double scroll bar when using any lightbox

I have a little problem.
Hi and thank you in advance about the help.
I tried 3 different lightbox to open an article page, but I can see one more scroll bar
please see as attachment.
Page link: www.noh-art.com/little-shop-of-art.html
the problem comes out when I click on the Enquire button.

The problem is here:

www.noh-art.com/templates/jp-time/styles/Black/css/theme.css
L. 10341 How do I have to change removeing completley the scroll bar?

And how I have to change as override?
To avoid come back the error after upgrade the template.
Thank you for your help.
Tony

Hello, I cant see any double scroll.
Did you fixed it?

I modified directly the css under style folder (becouse I created a custom CSS called black and modified that)
Thank you

Problem solved.