I don't know how to fix that

HELLO, i have a problem with my code, this code is for ban player but i don't know how to ban a given player because as in the console he puts in /check ban <player name> and the reason it banns me all the time player with nickname player please help me. Thanks in advance

PHP:

                if(isset($args[0])){
                    if($args[0] == "ban"){
                    if (!($sender instanceof Player)) return true;
                $sender->getServer()->dispatchCommand(new ConsoleCommandSender(), "ban $sender Cheats!");
                $sender->sendMessage("§c§lWas benned for cheats!");

 

if(isset($args[0])){
if($args[0] == "ban"){
if (!($sender instanceof Player)) return true;
if(($player = $sender->getServer()->getPlayer($args[1])) != null){
$sender->getServer()->dispatchCommand(new ConsoleCommandSender(), "ban $player Cheats!");
}
}
}

 

Idk why you need this because you can just use /ban ....

 

I do a plugin for Check the players This is a little complicated

 

PHP:

if(isset($args[0])){
    if($args[0] == "ban"){
        if($sender instanceof Player) {
            $player = $this->getServer()->getPlayer($args[1]);
            if($player->isOnline()){
                $sender->getServer()->dispatchCommand(new ConsoleCommandSender(), "ban " . $player->getName() . " Cheats!");
            } else {
                $sender->sendMessage("The player is not online!");
            }
        }
    }
}

 

i'm try it but i've got this error when i say "/check ban nickname"

PHP:

[11:20:25] [Server thread/CRITICAL]: Error: "Call to a member function isOnline() on null" (EXCEPTION) in "plugins/EasyKomendy/src/EasyKomendy/Main" at line 89

 

if($player->isOnline()!=NULL))

 

it work only in console but when i say /check ban nickname the server was crashed

PHP:

[15:26:29] [Server thread/CRITICAL]: Error: "Call to a member function isOnline() on null" (EXCEPTION) in "plugins/EasyKomendy/src/EasyKomendy/Main" at line 89

 

$sender->getServer()->getNameBans()->addBan($name, $reason, null, $sender->getName());