Optional field group with error message and error summary

option.njk

{{ govukErrorSummary({
  titleText: "There is a problem",
  errorList: [
    {
      text: "Enter at least one way to contact the user",
      href: "#passport-issued-error"
    }
  ]
}) }}

<div class="govuk-form-group govuk-form-group--error">
        {% call govukFieldset({
          legend: {
            html: "User's contact details",
            classes: "govuk-fieldset__legend--xl",
            isPageHeading: true
           }
        }) %}
          {{ govukErrorMessage({
            id: 'errorId',
            html: "Enter at least one way to contact the user"
          }) | indent(2) | trim }}

              {{ govukInput({
                label: {
                  text: "Fax number"
                },
                id: "event-name",
                name: "event-name"
              }) }}
            {{ govukInput({
              label: {
                text: "Email"
              },
              id: "event-name",
              name: "event-name"
            }) }}
            {{ govukInput({
              label: {
                text: "Telephone"
              },
              id: "event-name",
              name: "event-name"
            }) }}

        {% endcall %}
          </div>