Being returned to world map after pvp battle

What you were expecting to happen, and what actually happened?
To continue pvp
What are the steps to make it happen again?
Play a pvp game and I am returned to the world
Map every time and greeted with an error 'there was a problem when trying to contact the server. Please wait a few minutes and restart your game.'
Do you have any screenshots or video you want to share with us so we can see the problem? Attach them to your post!

It was only happening when gaining a rank in pvp now it is happening after every battle.