I have an error of (Undefined array key)

Line 317 - return $this->config->get('members')[$player->getName()];




ErrorException: "Undefined array key "Alvarobr022"" (EXCEPTION) in "plugins/IHFactionsPremiun_v0.0.1-SNAPSHOT/src/ihfactionspremiun/IHFactionsPremiunInstance" at line 317

 

You should check if the array key exists..
like

PHP:

$members = $this->config->get('members', []);
if(isset($members[$player->getName()])) {
    $member = $members[$player->getName()];
    // Do something with $member
}

 

PHP:

return $this->config->getNested('members.' . $player->getName());