Navigation slide button not displaying properly

Hi, please paste the following code in the custom CSS box

.slick-prev:before, .slick-next:before {
    font-family: 'Font Awesome 5 Free' !important;
    font-weight: 800 !important;
}

Regards

Thank you sir, it worked..

is there a possible way for me to sort the post display using the plugin?

Yes, you can use order and orderby attributes in the shortcode.

Thank You Rameez