Signup form

Hello,

I’m not a programmer and it’s the first time I’m doing a site. I chose a super easy theme (mesmerize) and created a landing page. I created a wordpress signup form and tried to link it to mailchimp. It worked for a couple of sign-ups and then it stopped working. I talked to Mesmerize support and they said it’s clear on their end, I talked to Mailchimp and they said it’s not on their end. Apparently it’s a wordpress issue – see following response to the API call sent to Mailchimp when someone attempts to signs up.. Can you pls help? Thanks a lot!

{
“message”: “Your merge fields were invalid.”,
“status_code”: 400,
“errors”: [
{
“field”: “ZIP2”,
“message”: “Please enter a value”
},
{
“field”: “ZIP”,
“message”: “Please enter a value”
}
],
“docs_link”: “http:\/\/developer.mailchimp.com\/documentation\/mailchimp\/guides\/error-glossary\/”
}

The page I need help with: [log in to see the link]