PDF & MP3 submission by composer seems broken

[pbird]

As a long time composer-contributor to IMSLP, I have uploaded ~23 pieces already.
Today, however, I was only able to create the New Work page (for "Wedding cantata").
When I tried to add either the PDF score or the MP3 preview, I worked through the normal process,
but at the very end there was an error message that I must first confirm my e-mail, before editing pages.
Now, my e-mail has not changed, and I have gone to Preferences and re-typed it more than once.
I have also logged-out and logged-in again, but can make no progress.

Is this glitch possibly related to the fact that I signed up for a paid membership today?

I would appreciate advice (or Admin intervention).
At present, the New Work page exists, but has no content.

Thanks for your time,
Peter Bird

[pbird]

Now (January 2018) these problems have been resolved, thanks to clearer instructions on the Composer Portal page.
Last April, I did not understand that "confirming" your e-mail means responding to an automated IMSLP e-mail with a URL link;
also, I never received those automated e-mails until after I designated "imslp.org" as a Friend in my e-mail spam filter.