Posted by Talion 3 years ago (Source)
As some of you may already be aware, there is an exploit surrounding GvG training invites. Using this exploit, people intentionally try to force an error message in an attempt to sabotage the game experience of other players.
This is, of course, not intended behavior - and as some used it to specifically target GvG teams, they knew it as well.
This specific error message will be removed in a patch next week, so it will no longer be a problem after that.
On top of that, the individuals responsible for the attempt to sabotage GvG fights will be temporarily suspended - as will anyone who attempts to use this exploit in the future.