@foreach($championship->fights()->get()->groupBy('area') as $fightsByArea)
    <h4>Area {{ $fightsByArea->get(0)->area }}</h4>
    <table class="table-bordered text-center" width="600">
        <th class="p-10 text-center" width="100">Id</th>
        <th class="p-10 text-center" width="250">Competitor 1</th>
        <th class="p-10 text-center" width="250">Competitor 2</th>

                @foreach($fightsByArea as $fight)
            @if ($fight->shouldBeInFightList(false))
                <br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function optional() in D:\dev\asl\vendor\xoco70\laravel-tournaments\resources\views\partials\fights.blade.php:13
Stack trace:
#0 {main}
  thrown in <b>D:\dev\asl\vendor\xoco70\laravel-tournaments\resources\views\partials\fights.blade.php</b> on line <b>13</b><br />