Mobile Sticky Menu Not Working

I have all the settings correct, but still, the sticky menu is not working. Please advise.
www.hiretaskhelper.com

I even tried the following code:

    .sticky-wrapper .top-bar {
        position: fixed !important;
    }

Hello there,

As checked, the sticky menu is working on my phone.

Please let me know whether you still need help with this or not.

Regards,
Kharis
aThemes Support