LeadBoard can't work

[Server thread/CRITICAL]: Error: "Call to a member function getAll() on array" (EXCEPTION) in "plugins/sexdcore/src/xinghao2003/SEXDCore/Main" at line 785

#error ^

#code v
public function getDJList(){

$text = "§l§d-================ §eTop10 Lv §d================-\n";
$gl = $this->getPlugin("Grade");

if(is_null($gl)){
$text .= "No plugin！";
}else{

$tmp = [];
$glData = $gl->exp->getAll();

if(count($glData) < 1) return $text;

foreach($glData as $$playerName => $data){
$tmp[$playerName] = (int)["grade"];
}

arsort($tmp);
$num = 0;
foreach($tmp as $playerName => $dengji){
$num++;
if($num > 10) break;
$text .= " §l§6TOP{$num} >> Name: {$playerName} Lv: {$dengji}\n";
}
}
return $text;
}

#config V
---
sdsd16:
exp: 1
grade: 18
maxHealth: 54
MI: 0
fix: ""

 

Error: "Call to a member function getAll() on array" (EXCEPTION) in "plugins/sexdcore/src/xinghao2003/SEXDCore/Main" at line 785
can I see the Main?

 

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