You should double check that the EFIN registration did not fall off your account for some reason.  When in PTO:

1. Click on the gear icon in the bottom-left for Settings;
2. In the popup screen, under TOOLS, click on EFIN Registration/Update.

If your EFIN registration shows Approved, you should contact Intuit Support for help.  Otherwise, follow the instructions in this article to resubmit your EFIN for update:

https://proconnect.intuit.com/community/intuit-account/help/register-your-efin-with-proconnect-tax-o...