09:02 EST / 13:02 UTC - Just a quick note to let you know this issue should now be resolved. If you try again it should work as expected but you may need to reload the page for these changes to take effect. Apologies again for the inconvenience.
08:55 EST / 12:55 UTC - We are aware of the “Server Error in '/' Application.” when accessing Power Diary. This is with our engineers who are analysing the error as a high priority. We will follow up with more information in due course ASAP, and we apologise for the inconvenience caused during this time.