This happens every now and then but its every rare , when its happens you can contact staff by tying in game /helpop {msg} , or you can talk to them on the discord server on the #help channel
As it isn't really a bug that takes a lot of time and effort to fix, like people have said above, telling us in-game is usually the best thing to do. It can be dealt with pretty fast, and so the faster we get to it, the faster we can fix it!