several things happening -pro version

1. When I go to drag a form field to the form creator it duplicates the field and then wont allow me to edit.

2. The dropdown menus are not working on the live page when you click the down arrow.

3. The forms are not submitting, I’ve tried different emails. I’m not getting any email in return nor are the forms being submitted to the plugin.

my site is https://www.marketingems.org

Can this problem be fixed in the form creator, I will be using this for several pages on the site.

https://www.ads-software.com/plugins/nex-forms-express-wp-form-builder/