Please tell me what do i change to make it right? Error: Declaration of aliuly\worldprotect\Main:nCommand(pocketmine\command\CommandSender $sender, pocketmine\command\Command $cmd, $label, array $args) must be compatible with pocketmine\plugin\PluginBase:nCommand(pocketmine\command\CommandSender $sender, pocketmine\command\Command $command, string $label, array $args): bool File: WorldProtect.phar/src/aliuly/worldprotect/Main Line: 30 Type: E_COMPILE_ERROR THIS CRASH WAS CAUSED BY A PLUGIN Code: [21] use pocketmine\utils\TextFormat; [22] use pocketmine\level\Level; [23] use pocketmine\event\level\LevelLoadEvent; [24] use pocketmine\event\level\LevelUnloadEvent; [25] use pocketmine\Player; [26] use aliuly\worldprotect\common\mc; [27] use aliuly\worldprotect\common\MPMU; [28] use aliuly\worldprotect\common\BasicPlugin; [29] [30] class Main extends BasicPlugin implements CommandExecutor { [31] protected $wcfg; [32] const SPAM_DELAY = 5; [33] [34] public function onEnable() { [35] if (!is_dir($this->getDataFolder())) mkdir($this->getDataFolder()); [36] mc:lugin_init($this,$this->getFile()); [37] $cfg = $this->modConfig(__NAMESPACE__, [ [38] "max-players" => [ "MaxPlayerMgr", false ], [39] "protect" => [ "WpProtectMgr", true ], [40] "border" => [ "WpBordersMgr", true ],