Removing the faulty server seems to have resolved the problem for now. We are actively investigating what went wrong and will monitor the status ghost.io.
Posted Jun 11, 2017 - 21:32 BST
Update
We have identified one app server to be the main cause for errors. The app server is disabled for now and we are monitoring closely.
Posted Jun 11, 2017 - 20:53 BST
Investigating
We are experience an increased number of errors on ghost.io. We are investigating and will post updates here.