Sign-up form not shown

I have a sign-up form that is not showing. I have been searching in the documentation and I have already checked that the store code shows the Klaviyo company ID correctly and only one integration is shown. I compared the code against another store that I manage and the code is the same - of course, each one with its corresponding identifier - but it still doesn't work. What other action can I try? Will I have to delete the integration and do it again?

Thanks in advance for your responses.