Fall of Tumblr

My Tumblr site has been throwing this error since 12/29:

Notified Tumblr support upon encountering this condition, that literally renders my site inaccessible to the public at large, other than followers viewing posts from their Tumblr dashboard. This morning, I received a response (other than the auto-responder that initially was fired off) from Tumblr support:

Thanks for getting in touch! I'm sorry you're having this problem. I’m passing this along to our engineers to investigate. Depending on the severity of the root cause, a fix might take longer than expected, so thanks for hanging tight while they look into it. Let us know if there's anything else we can help you with in the meantime.

Dear Tumblr overlords, please fix my site ASAP!