Hide Top bar on specific pages

The CSS code is not printed out at that page. Does any plugin or the theme remove all functions for wp_head?

To hide the bar try appending that code into the style.css:
.new_mobile #scb-wrapper {display:none;}

If you can find the distinct class name of the page you can use it to catch that page in a CSS selector, like
.page-contact #scb-wrapper {display:none;}

Your task is to find out the correct value of the page in the ‘class’ attribute of the BODY element of the page and to replace ‘page-contact’ in the example code with the correct name.

To catch multiple page add them to the selector, separated by commas, like:

.page-a #scb-wrapper,
.page-b #scb-wrapper,
.page-c #scb-wrapper {
    display:none;
}