Cannot subscribe to notification email

[EweSparky]

When I try to encrypt a file and subscribe to notifications, I get the following error:

Failed to subscribe to file. Ensure your [Extended subscription](https://standardnotes.com/features) is valid and try again.

I have a paid SN subscription using the email address I attempted to subscribe to the notifications with, but it seems like FileSend is still expecting an Extended subscription.

Additionally, FileSend isn't even mentioned on the SN website any more other than at the now-defunct Extensions feature sub-page. It's not listed on the Feature page. Is FileSend going away?