Solved Fatal Error: Can't use '$this'?!

Code:

Error: Using $this when not in object context

PHP:

class CustomCommands{
   
   public static function checkCommands(){
     if($this->getConfig()->getNested("help-cmd.custom") === true){
      $this->getServer()->getCommandMap()->getCommand("help")->unregister($this->getServer()->getCommandMap());

Already tryed nearly everything... __construct(), extends and so on, but it won't let me use $this.

Anyone can help me?

Learn OOP.

You are using a static method. Remove static and should work.

Why is has he even added static?

'Search' - 'Replace all' ops

No sense but, ok xD