Footer Menu Clashing with Header Cart Slide Bar

Hello Sir,
First of all thank you for a great plugin.
I am facing an issue with my Header Cart side menu and Plugin’s wfs-cart-overview class.

Let me explain
I am using Woostify theme.
1. Whenever I clicks on Header Cart Button it coms under the wfs-cart-overview class and hiding checkout button.

Screen Shot for your assistance.
1. https://prnt.sc/119kk7g
2. https://prnt.sc/119kjvh
3. https://prnt.sc/119kjgb

Now I would like to say that, I dont want to hide the wfs-cart-overview class by “Hide Bottom Cart” from Layout settings. I just want to bring my cart sidebar over the overview class.

What I did sofar:

1. Added to Additional CSS

.wfs-cart-overview{
z-index: -1 !important;
}

I have checked with changing the z-index values, found no luck.

2. Added to Additional CSS for Side Cart menu with

.shop-cart-sidebar{
z-index: 9999 !important;
}

I have checked with changing the z-index values here also, found no luck.

Is there any solution to this problem?
Thanks in advance.