Form not working after grav updating

Hi all. I have problem with form handling in my site. Some time before all works normally and form saves the data. Then I updated grav and form plugin and after that form stop working. What is the problem, how i will fix and debug it. Thanks before

What do you mean by “stops working”? Are you getting an error? Is it just not reacting? Is it submitting but not saving the data?

@Perlkönig Nothing happens. Must show thankyou page, form submited,but not saving the data.I updated Form plugin from 1.3.2 to last version.
I think maybe in new version of plugin must be something other in .md file.
I have that

title: Home
menu: Home
published: true
form:
    name: contact-form
    fields:
        - name: fname
          label: First name:
          size: col-xs-6
          placeholder: Enter your first name
          autocomplete: on
          type: text
          classes: form-control
          validate:
            required: true

        - name: lname 
          label: Last name:
          size: col-xs-6
          placeholder: Enter your last name
          autocomplete: on
          type: text
          classes: form-control
          validate:
            required: true

        - name: email
          label: Email:
          size: col-xs-12 col-sm-6
          placeholder: Enter your email address
          type: email
          classes: form-control
          validate:
            required: true

        - name: message
          label: Message:
          size: col-xs-12
          rows: 5
          placeholder: Enter your message here
          type: textarea
          classes: form-control
          validate:
            required: true

        - name: subscribe
          type: checkbox
          default: checked
          label: "Register with Empty Legs newsletter?"
          size: pull-left col-sm-6 col-xs-12 mb-2rem
          validate:
            required: false

    buttons:
        - type: submit
          value: Submit my message

    process:
        - email:
            from: "{{ config.plugins.email.from }}"
            to:
              - "{{ config.plugins.email.from }}"
              - "{{ form.value.email }}"
            subject: "[Feedback] {{ form.value.name|e }}"
            body: "{% include 'forms/data.html.twig' %}"
        - save:
            fileprefix: feedback-
            dateformat: Ymd-His-u
            extension: txt
            body: "{% include 'forms/data.txt.twig' %}"
        - message: Thank you for your feedback!
        - display: /components/thankyou

Thaks before for answers

Do you have another form on your site with the same name ??? ie contact-form ?

Yes. On the other page in .md file is the same form code

You need to ensure those names are unique for each form.

BTW, this is because of the recent improvements to forms that allow forms to be globally accessed.