Adbar not closing

Hi there

I am using this plugin and it works perfectly. The only issue I am having is that the close button doesn’t work.

My cursor changes when I hover over it but if I click it nothing happens. I have styled the adbar quite a bit so it looks the way I want it to but even if I remove all my styling it still doesn’t work so the error is not mine.

Please assist! The link is https://www.thefireworks.co.za and the adbar is at the bottom left.