I am registered yet I get the following error: "The Pool Manager (email) is not registered for 2019"
This could be due to the fact that you are using a previous year's version of OfficePool or you are re-using a Web Form or OfficePool file from last year. Make sure you are using the lastest version and then try re-creating the Web Form.
Also make sure you have reset the database settings by selecting the "Import" tab and then selecting "settings" in the lower right-hand corner.