Hi, sorry for the late reply! I just didn’t have any chance to look at the forum last week or so (too much urgent work and also the holidays). As far as I can see, your page does not include the script any more so, unfortunately, I cannot test right now. But in general, if you are using Bootstrap, then it’s much better to use the Bootstrap add-on instead of a separate SmartMenus theme like “sm-clean”. Here is a demo for a fixed top navbar:
http://vadikom.github.io/smartmenus/src/demo/bootstrap-navbar-fixed-top.html
It will make sure all Bootstrap navbars functionality works like normally (including the Bootstrap theme, breakpoints, etc.) and will save you a lot configuration efforts.
