Hello.
I've been looking for some time now to see what could be wrong with my store, but I don't see the solution.
I use Prestashop 8.1.7 with PHP 8.1.31.
I have created several coupons, but they don't work. When I add a coupon that doesn't exist, the action works fine, giving an error message saying that the coupon doesn't exist (https://prnt.sc/mudh_8uMXK5g)
But when I use a coupon that does exist, an empty error appears and nothing applies (https://prnt.sc/V1XEPWRFGd41)
I used a paid template, but I changed it to the classic theme to see if that was the reason and it's still the same.
Any idea what it could be? I moved the site to a test subdomain to play around with things, in case you want to check how it works (https://test.bozoom.es). A valid coupon would be BZM5ENE
Thanks