Cannot enter the game use cellular data

can someone help me? I want to ask since last night upgrading v18.01 I can’t play empires through mobile data. and this happens to all my members who use the same mobile data brand as me, but if I use wifi I can easily enter. to this day I still cannot enter the game through mobile data. then I tried the turbo vpn app and made it in. I want to ask this is an error from my provider or from SG because we know the app that uses VPN is a blocked app. sorry if this is out off topic but this really annoys me