Trying to get property of non-object when Model is softdeleted about laravel-favorite

[aagp]

Well just figure it out how to do a workaround if anyone crossing with this issue, also if author want to add it to the repo is very welcome,

Trait Favoriteability under christiankuri\laravel-favorite\src\Traits\Favoriteability.php

public function favorite($class)
{
    $list = collect();
    //retrieve results from pivot table
    $favorites = $this->favorites()->where('favoriteable_type', $class)->with('favoriteable')->get();
    //at this point if a model has been soft deleted it will be still at the pivot table
    
    //here we will ditched those that doesnt "exist" or are not "deleted" from $class model
    foreach ($favorites as $favorite) {
        if($class::whereId($favorite->favoriteable_id)->get()->isNotEmpty()) {
            $list->push($favorite);
        }
    }

    return $list->mapWithKeys(function($item) {
        return [$item['favoriteable']->id=>$item['favoriteable']];
    });
}

Let me know if anyone comes up with something cleaner.
Regards!