[File dayz_server.pbo not signed by acceptable key to play on this server]

Thank you for your response and your help, I greatly appreciate it.

 

It only happens to certain people. I've noticed that my friend and I have re-installed DayZCommander and re-installed the game via Steam, again and we are having no issues now connecting to it. However, two things, some of our other players cannot connect and I cannot get it to register on DayzCommander: Here is my config.cfg

steamport=2300;
steamqueryport=2301;
hostName = "HOSTNAME :)";
password = "";
passwordAdmin = "************";
maxPlayers = 50;
logFile = "server_log.txt";
voteThreshold = 2;
voteMissionPlayers = 3;
reportingIP = "arma2oapc.master.gamespy.com";
timeStampFormat = "short";
motd[] = {"DayZ Epoch","Have fun!"};
motdInterval = 0;
vonCodecQuality = 11;
disableVoN = 0;
kickduplicate = 1;
verifySignatures = 2;
persistent = 1;
BattlEye = 1;
doubleIdDetected = "";
onUserConnected = "";
onUserDisconnected = "";
onUnsignedData = "kick (_this select 0)";
onHackedData = 	"kick (_this select 0)";
onDifferentData = "";
regularCheck = "";
requiredBuild = 125548;
requiredSecureId = 2;

class Missions
{
    class Mission1
    {
    	template = "DayZ_Epoch_12.Chernarus";
    	difficulty="recruit";
    };

};

[File dayz_server.pbo not signed by acceptable key to play on this server]

I still cannot fix this on my server. Reinstalled multiple times. Key issue continues. Cannot figure out whats going on.