<div id="dnd-custom-height" class="file-upload-wrapper">
    <input type="file" id="cv" name="cv" class="file-upload-input" data-mdb-height="100" data-mdb-default-msg="<?= translate('Unesite CV') ?>" data-mdb-main-error="<?= translate('Došlo je do greške.') ?>" data-mdb-file-upload="file-upload" data-mdb-accepted-extensions=".docx, .pdf" data-mdb-format-error="<?= translate('Netačan format datoteke (tačan format .dock, .pdf)') ?>" required>
</div>

Hello.

I want to make a file upload required when the form is submitted. Currently, it is required, but I don't receive any 'invalid class' or other necessary information to display an error message indicating that it needs to be filled out. So, it becomes required without any frontend message.

Thank you.