PHP Code:
//-bof-zca_bootstrap  *** 1 of 1 ***
//    $new_style = 'category-top';
        $new_style = 'nav-item nav-link m-1 activeLink';
//    $categories_tab_current = '<span class="category-subs-selected">' . $categories_tab->fields['categories_name'] . '</span>';
    $categories_tab_current = $categories_tab->fields['categories_name'];
  } else {
//    $new_style = 'category-top';
    $new_style = 'nav-item nav-link m-1';
//-eof-zca_bootstrap  *** 1 of 1 *** 
You must have something else going on with a file or lack thereof. The class (.activeLink) is present correctly in your site as it is in my un-modded test site. The code I gave you earlier works just fine on my test site.

The question is... What on your sited is different from an out-of-the-box load? Also, why wait for the active to work before launch? It would not stop function but you cetainly can't make money in development.