Modal interfering with the scrolling of the page

Question

I’m having a problem with modal, because I have a modal with several links and by having several links it creates a scrolling on the page, until then it is normal. When you click on one of these links it opens another modal which contains an image, it turns out that this image is also large and creates a scroll, so so far so good too.

The problem is that when I close this modal with image it should keep the scrolling of the modal with links, but not, the scrolling disappears and I can’t go down to see the other links.

The site is http://www.escolatarsiladoamaral.com.br on the menu Restricted 1 afterward Menus