None of our customers can use their gift cards. When a customer puts a gift card code in the "Apply Gift Card Code" section and clicks "Add Gift Card" it says "Wrong gift card code". If they click "Check Gift Card Status" it says "Wrong Gift Card Code" - notably, in a different location on the page, and with different capitalization of the words.
I've doublechecked and the gift cards all displaying as valid and active when I check in the Magento backend, Marketing > Gift Cards > Accounts
I'm using Gift Card 1.5.6
I also have not found where the logs for this are being generated, if there are any