InvisibLe019 on "[Theme: Openstrap] Parent pages not clickable with new update"

So as the title says...I accidentally updated openstrap theme, of course all my changes were deleted, but on top of that, now I can't click on parent pages to open them. It only works if I access from bottom menu, or I open them in new tab. This is my website http://www.tismitrovic.rs
Any help is appreciated.