How did you hear about us? Error Message when choosing an option

Hi,

I added the “How did you find us” option to our website and followed the steps from " Ask how customers heard about your store" from Shopify. I don’t want to make it required so I skipped that step. I can see it at the bottom of the page and its working, however when I choose an option from the drop down menu, I get an error underneath checkout that reads “There was an error while updating your cart. Please try again.”

I can still proceed to the check out, but this confuses folks and I cant figure out how to remove that or make it not an error.

Thanks!

Can you share a link to your website so I can see what you’re talking about? Thanks.

https://viviansflowermarkets.com/

Hi can you look at mine!! I am having the same issue