Can not connect to data center message Warzone for PC

Hi there, I play in the Europe server but as I work in China, I use VPN to play Warzone.

I can play Modern Warfare multiplayer, no problem. But for whatever reason, I can’t play Warzone. Even when my friends try to invite me to a game, we can’t find one, it just stays at the ‘searching’ stage. But when they play without me, they have no problems.

I scanned the files through the battle.net options and that didn’t do anything.

Is it possible that I have been banned for using a VPN? I can’t imagine why this would warrant a ban and I’ve recieved no messages or notifications saying I’m banned.

My internet connection isn’t great, but as I said before, I can still play MW multiplayer just fine.

I am not very good with computers… but if anyone can help out and suggest anything, I would appreciate it.

Thanks in advance.