Not seeing anything that I can pin point what the problem is, Do you have access to the server logs?
If so post the Rustbuster and output logs
6/18/2017 10:27:58 PM [RustBuster] [color green] RustBuster Connection Established!
6/18/2017 10:28:05 PM [RustBuster] [color red] Exception during connection System.NullReferenceException: Object reference not set to an instance of an object
at lXU=.t3U=.u3U= (System.Exception exception) [0x00000] in <filename unknown>:0
at lXU=.ZXY=.cXY= (System.Object& instance, System.Object[] methodArgs, Boolean isNullNullable, System.Reflection.MethodBase methodBase, Boolean isVirtualCall) [0x00000] in <filename unknown>:0
at lXU=.yHc=.znc= (lXU=.KXY= ) [0x00000] in <filename unknown>:0
at lXU=.t3U=.unU= (lXU=.KXY= ctx) [0x00000] in <filename unknown>:0
6/18/2017 10:28:05 PM [RustBuster] Failed to connect!
Logo(change the green logo), a Menu that I created with the help of Dity and the Map (radar)
Seems like your client is able to connect, but then something happens and It fails to send a message.
What is your server ip?