How to fix the display error in an empty cart drawer?

hi guys, i have an issue on empty cart - i’m currently customizing Dawn and using its cart drawer function.

Before i add any items to cart, my cart drawer shows up like below if i click on the cart button [OK]:

But after i add some items to cart and then delete them all, my empty cart shows up like below [BAD]:

If i then refresh the page, the empty cart [BAD] will return to [OK] state.

I want to know if any of you guys could help me with the [BAD] situation, as I want to the show as [OK] after I delete all of the items in the cart drawer. Many thanks!!