Compatibility issue with WPC Fly Cart plugin

Hey,

Wondering if you’re aware of the issue with this plugin (https://www.ads-software.com/plugins/woo-fly-cart/).

I’m using their side cart which already has some quantity buttons there. When I activated yours it breaks the quantity selectors (https://drive.google.com/file/d/16UcidWcF5A14zpvMSSFirLqYwr0R3qot/view?usp=sharing)

Is there any way to only keep theirs/yours quantity buttons activated here?

Thanks