打开BFBC2Game.exe 给了两条提示信息。是什么意思呀？求解决方法！

las999

打开BFBC2Game.exe 给了两条提示信息。是什么意思呀？求解决方法！
第一条：
Failed to initialize the NexuBC2 Client.
Unknown client/server detected!
Please verify the integrity of your files and try again.
第二条：
The NexusBF Master Server seems to be unreachable.
This means that the server is down,you don't have an active
internet connection or your firewall is blocking the connection.
Please try again at a later time.
求解决方法。