Drop-down menu trouble

So I’m trying to customize the drop-down menu on my site, but when I open up the “Select Field” settings, there is no option to open the menu.

Could someone help me figure out how to change this? The current drop-down is god awful.

P.S. - Sorry about the terrible image quality. The drop-down closed every time I tried to take a snip of the page, so I used my phone.

Here is my site Read-Only: Webflow - Panopticon