Update - March 1st, 2017: Everything is back to normal. Thank you for your patience!
We are experiencing an outage because the Amazon services (AWS, S3) are are down at the moment. We use Amazon to store your blog posts in the cloud. They are working hard to fix this unusual outage. Amazon is known for their service uptime so I am sure they will fix this issue soon.
Sorry for the inconvenience this has caused you.