Вот что пишет::
[INFO] Starting minecraft server version Beta 1.8.1
[INFO] Loading properties
[INFO] Starting Minecraft server on 25.23.24.194:25565
[WARNING] **** FAILED TO BIND TO PORT!
[WARNING] The exception was: java.net.BindException: Address already in use: JVM_Bind
[WARNING] Perhaps a server is already running on that port?
Соболезную