The error “We’re sorry. It looks like you’ve already submitted that.” comes from Formidable Forms, not PRO2PDF. It sounds like you are unable to submit the Formidable Form.

Try testing from the PRO2PDF EXPORT tab to check the functionality of PRO2PDF, and let us know if you receive an error.

If the PRO2PDF export works, take a look at this Formidable Forms post”We’re sorry. It looks like you’ve already submitted that.” and contact Formidable Forms support regarding that specific error.

We remain at your service.