Doing a Citadel I was kicked from the game with a server maintenance message.

While doing a Citadel I was kicked from the game with unexpected server maintenance message. There was no warning so when I downloaded the patch update and logged back in the Citadel status was map failed. If Citadels were easy to get to I would not be creating this thread but I think a bit more care needs to be taken when performing maintenance and if players are in difficult to find content the status of the map should be reset. A warning message would have been good but I got no notice of the maintenance occurring and then to come back to the game with the Citadel blocked with map failed is really a bad experience seeing I've been a large amount of time making my way to do the Citadel. If you're going to make difficult to get to content then more care needs to be taken with disconnects and maintenance updates especially warning a player would be good!

I saw a restart warning message every 5 minutes for the preceding hour.