Xboard/app/Models/StatServer.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class StatServer extends Model
{
    protected $table = 'v2_stat_server';
    protected $dateFormat = 'U';
    protected $guarded = ['id'];
    protected $casts = [
        'created_at' => 'timestamp',
        'updated_at' => 'timestamp'
    ];

    public function server()
    {
        return $this->belongsTo(Server::class, 'server_id');
    }
}