This is
NOT the original RTB.
This is a clone made by daprogs. You need to use the version the OP provided. It doesn't contain backdoors.
Note this in his description.txt:
Title: oRBs(old RtB support)
Author: oRBs Team Originally by RTB Team
oRBs Add-On for Blockland
Note this in the modified modules/client/connectClient.cs:
$RTB::MCCC::Server = "blid.daprogs.com";
$RTB::MCCC::Port = 14000;
I don't know if OP is clueless too or just successfully trolled everyone, but who cares.
The clone is also based on an outdated version, 4.04 instead of 4.05 which contains various fixes and some new features for server control.