error : undefined array key "stacked"

[comsatsTaha]

$chartOptionsDaily = [
'chart_title' => 'Per Day Applications',
'report_type' => 'group_by_date',
'model' => 'App\Models\Candidate',
'group_by_field' => 'created_at',
'group_by_period' => 'day',
'chart_type' => 'bar',
'chart_color' => '255,0,0',
];
$chartDaily = new LaravelChart($chartOptionsDaily);

Error Showing on :
{!! $chartDaily ->renderJs() !!}

[PovilasKorop]

@comsatsTaha add option 'stacked' => false, we will fix this in the next release.