ModX FormIt: validation error and success at the same time

Question

I create my form in ModX with FormIt:

[[!FormIt?
    &hooks=`email`
    &emailTpl=`registerEmailTpl`
    &emailSubject=`New Registration on Huayang English Website`
    &emailTo=`toto@gmail.com`
    &successMessage=`Your application has been successfully sent to Huayang.`
    &emailFrom=`contact@studychineseinyunnan.com`
    &emailFromName=`Huayang School`
    &submitVar=`registerForm`
    &validate=`given_name:required, 
        family_name:required, 
        birthday:required,
        gender:required,
        address:required,
        city:required,
        state:required,
        country:required,
        zip:required,
        email:required,
        phone:required,
        passport_number:required,
        place_of_issue:required,
        date_of_issue:required,
        expiration_date:required,
        campus:required,
        class_type:required` 
]]

The issue is that I always get a validation error, even if I input information for all required form inputs. The weird thing is that the form seems to validate: the success email is sent and the [[!+fi.successMessage]] is shown. But on the other hand, the [[+fi.validation_error_message]] is shown too and [[!+fi.validation_error]] equals to 1. [[+errors]] is empty though as well as [[!+fi.error]] which is supposed to contain the validation errors..

So, it seems the form is validating and not validating at the same time.

How can I debug the form and find where the validation error comes from?

Answer 1

Are there multiple forms on the page that might be clashing? If so try setting another &prefix for one of the FormIt's.

Answer 2

Are you using the notempty output modifier for the validation error?

[[!+fi.validation_error_message:notempty=`<p>[[!+fi.validation_error_message]]</p>`]]