Config Problem

Error:

Code:

BadMethodCallException: "Cannot serialize Server instance" (EXCEPTION) in "src/pocketmine/Server" at line 2551

Code:

PHP:

public function setHome($getName, $home, $x, $y, $z, $level){
        $cfg = new Config($this->p->getDataFolder()."Homes/".$getName.".yml", Config::YAML);       

   if(empty($cfg->get("homelist"))){
  $cfg->set("homelist", array($home));
  }else{
 $homes = $cfg->get("homelist", []);
 $homes[] = $home;
 $cfg->set("homelist", $homes);
  }
  $cfg->set($home, [
  "X" => $x,
  "Y" => $y,
  "Z" => $z,
  "Level" => $level,
  ]);
  $cfg->set("homecount", $cfg->get("homecount") + 1);
  $cfg->save();
 }

 

You are not giving us the full error neither the lines of it