PerfectScrollbar not showing

[expelliamus]

After the latest update the PerfectScrollbar isn't showing. You can see this also in your site https://demos.creative-tim.com/material-dashboard-pro/examples/dashboard.html please fix this asap

[experttab]

PerfectScrollbar version updated to 1.4 or 1.5.
To show the PerfectScrollbar, you need to add perfect-scrollbar.css to your page. Otherwise it won't show properly. Also, you need to add this javascript in document ready function:
new PerfectScrollbar('.ps');
The old script:
$('.sidebar .sidebar-wrapper, .main-panel').perfectScrollbar();
it won't work anymore.