You may have noticed a disturbance if you were playing around 3:30pm (paris time, an hour and a half ago).
We just upgraded our battle system backend to version 3, almost a total rewrite.
The improvements may not be very visibles from your side but the system is MUCH faster (3 to 5 times faster) and should handle high load traffic far better than before.
Also, a few annoying bugs have been also eliminated, thanks to a cleaner code.
Oh, and personnal blacklists now also work for the in-game messaging (and not just for "web" privates msgs anymore). So if you click on "ignore this player", he wont be able to talk to you anymore.
We'll keep an eye on the servers and we are very excited to go back on game features asap, now that this big project has been completed