Solved Argument 2 passed

I try to open Windows thank CustomUI with next command ?:
/test


Error:
https://pastebin.com/7LZNvkHM

Code:
https://pastebin.com/2fupvdHN

Line:
$this->getServer()->getCommandMap()->register(Commands::class, new Commands($this));

 

https://pastebin.com/YtRR0H6V
I want use on command to show UI but nothing happen

 

You cannot use onCommand() if you want to register a new command like that. You need to create a command classs and add all your command's code there.

 

Yea they are command class and subcommand but want to dell sub command

 

Put your sub-command's code into the command's class.

 

I have true i can use
public function onCommand(CommandSender $sender, Command $cmd, string $label, array $args) : bool {
$plugin = $this->getServer()->getPluginManager()->getPlugin("customuitest");
if($cmd->getName() == "test"){
UIAPI::showUIbyID($plugin, Loader::$uis['simpleUI'], $sender);
}
return true;
}

To show UI. M'y code work great