You probably have a notepad available, alongside the email. This is enough for you to create a ledger.
All you lost was the convenience of an automated system.
And of course, itll be a shitload more work to operate now, as you need to build a relationship with each shareholder.

None the less, shareholders have a way to identify themselves to you, and you have a way to identify their holdings.
Good enough.

Your situation sucks, but playing it off like you can not do a thing without the GLBSE is laughable.