Although it was a different error (the exact one escapes me at the moment), it was equally as puzzling for a few days on my side;
What I found was that I had made an aborted attempt to add an entry to my podcast. Even though I exited out of that one, there must have been some code or something that kept creating an error everytime I published. My only clue was that entries were marked in red as though there was something waiting to be published.
Finally, I created a new entry and that act in and of itself worked, everything published fine and I was up and going again.