After migrating, it seems my server is stuck when I try to start it up.
The last thing said in the console is "Engine initialized..."
I don't know if this is my fault or just the migration's. (my blid is 2983)
As mentioned in the migration message, you need to re-enter your key after the migration either via the Change Key page or via the console itself if you know how to do that. You'll see in your activity stream (and also at the top of the page when you start the server) that the server is requesting you to re-enter your authentication key too.
For future issues it'd be far better to use the inbuilt support system - not only does it notify our cellphones about a new ticket but it'll email you with a notification when we reply to it too. It's a much more effective way to sort something as quick as possible.