I need to download all the invoices for a whole year

Hello @izquierdocreativo,

If the Invoices are not generated, yes, you need to regenerate them.
With the Bulk Export Tool offered by the Professional extension of our plugin, you can select a date range to then either export to DropBox, FTP or as a ZIP file:

WordPress doesn’t allow us to provide support for paid software here in the forums, so if you have questions regarding this, please email us at [email protected]. 🙂

Thank you very much for the reply!!