Contact Form Error "expected Hash to be a String: email"

Shopify Discussion
1

I customised my contact form and all seems to be working until I click send and the next page comes up with an error saying “expected Hash to be a String: email”

What does this mean?

This is the code I’m using - I cant work out what might be wrong..

{{ page.title }}

{{ page.content }}
{% form 'contact' %}

{% comment %}
Successful message
{% endcomment %}
{% if form.posted_successfully? %}

{{ 'contact.form.post_success' | t }}

{% endif %}

{{ form.errors | default_errors }}

Name
Email
Phone
Wedding Date

Ceremony Location

Reception Location

Budget

Message

{% if form.body %}{{ form.body }}{% endif %}

How did you hear about us?

{% endform %}