Akaunting/app/Models/Common/Media.php

<?php

namespace App\Models\Common;

use App\Traits\Owners;
use App\Traits\Sources;
use App\Traits\Tenants;
use Illuminate\Database\Eloquent\SoftDeletes;
use Plank\Mediable\Media as BaseMedia;

class Media extends BaseMedia
{
    use Owners, SoftDeletes, Sources, Tenants;

    protected $fillable = ['company_id', 'created_from', 'created_by'];

    protected $casts = [
        'deleted_at'    => 'datetime',
    ];
}