[Bug Report] Add to Cart – Coupon error Triggered

see this video : https://www.facebook.com/Brendymullan/videos/926619037438015/

i use Flatsome Woocommerce theme.
your plugin will triggered in checkout page, and make the “Have a Coupon”? dissapear…
i currently have coupon feature, and really need that function from checkout page.

can you please fix this? ??