Program: 141617
Project: 141617
Buggy source:
@Override public void run(final CommandSender cs,String label,String[] args){
  if (!r.perm(cs,"String_Node_Str",false,true)) {
    return;
  }
  if (r.checkArgs(args,0) == false) {
    r.sendMes(cs,"String_Node_Str");
    return;
  }
  OfflinePlayer banp=r.searchOfflinePlayer(args[0]);
  if (banp == null || (!banp.hasPlayedBefore() && !banp.isOnline())) {
    r.sendMes(cs,"String_Node_Str","String_Node_Str",args[0]);
    return;
  }
  Long time=0L;
  String reason=r.mes("String_Node_Str");
  if (r.checkArgs(args,1) == false) {
  }
 else   if (DateUtil.parseDateDiff(args[1],true) == -1) {
    reason=r.getFinalArg(args,1);
  }
 else {
    time=DateUtil.parseDateDiff(args[1],true);
    if (r.checkArgs(args,2) == true) {
      reason=r.getFinalArg(args,2);
    }
  }
  String timen=DateUtil.format(time + System.currentTimeMillis());
  if (time == 0) {
    timen=r.mes("String_Node_Str");
  }
 else {
    timen="String_Node_Str" + timen;
  }
  if (!r.perm(cs,"String_Node_Str",false,false) && !r.perm(cs,"String_Node_Str",false,false) && time <= 0L) {
    r.sendMes(cs,"String_Node_Str");
    return;
  }
  if (!r.perm(cs,"String_Node_Str",false,false) && !r.perm(cs,"String_Node_Str",false,false) && !(time <= 0L)) {
    r.sendMes(cs,"String_Node_Str");
    return;
  }
  String msg=r.mes("String_Node_Str").replace("String_Node_Str",timen).replace("String_Node_Str",reason);
  if (banp.isOnline()) {
    banp.getPlayer().kickPlayer(msg);
  }
  UPlayer pl=UC.getPlayer(banp);
  pl.ban(time,reason);
  if (r.getCnfg().getBoolean("String_Node_Str")) {
    Bukkit.broadcastMessage(r.mes("String_Node_Str").replace("String_Node_Str",((cs instanceof Player) ? cs.getName() : cs.getName().toLowerCase())).replace("String_Node_Str",banp.getName()).replace("String_Node_Str",timen).replace("String_Node_Str",reason));
  }
}

Fixed version (ground truth):
@Override public void run(final CommandSender cs,String label,String[] args){
  if (!r.perm(cs,"String_Node_Str",false,true)) {
    return;
  }
  if (r.checkArgs(args,0) == false) {
    r.sendMes(cs,"String_Node_Str");
    return;
  }
  OfflinePlayer banp=r.searchOfflinePlayer(args[0]);
  if (banp == null || (!banp.hasPlayedBefore() && !banp.isOnline())) {
    r.sendMes(cs,"String_Node_Str","String_Node_Str",args[0]);
    return;
  }
  Long time=0L;
  String reason=r.mes("String_Node_Str");
  if (r.checkArgs(args,1) == false) {
  }
 else   if (DateUtil.parseDateDiff(args[1]) == -1) {
    reason=r.getFinalArg(args,1);
  }
 else {
    time=DateUtil.parseDateDiff(args[1]);
    if (r.checkArgs(args,2) == true) {
      reason=r.getFinalArg(args,2);
    }
  }
  String timen=DateUtil.format(time + System.currentTimeMillis());
  if (time == 0) {
    timen=r.mes("String_Node_Str");
  }
 else {
    timen="String_Node_Str" + timen;
  }
  if (!r.perm(cs,"String_Node_Str",false,false) && !r.perm(cs,"String_Node_Str",false,false) && time <= 0L) {
    r.sendMes(cs,"String_Node_Str");
    return;
  }
  if (!r.perm(cs,"String_Node_Str",false,false) && !r.perm(cs,"String_Node_Str",false,false) && !(time <= 0L)) {
    r.sendMes(cs,"String_Node_Str");
    return;
  }
  String msg=r.mes("String_Node_Str").replace("String_Node_Str",timen).replace("String_Node_Str",reason);
  if (banp.isOnline()) {
    banp.getPlayer().kickPlayer(msg);
  }
  UPlayer pl=UC.getPlayer(banp);
  pl.ban(time,reason);
  if (r.getCnfg().getBoolean("String_Node_Str")) {
    Bukkit.broadcastMessage(r.mes("String_Node_Str").replace("String_Node_Str",((cs instanceof Player) ? cs.getName() : cs.getName().toLowerCase())).replace("String_Node_Str",banp.getName()).replace("String_Node_Str",timen).replace("String_Node_Str",reason));
  }
}