Livewire upload 500 error

Hello guys,

I try to upload with livewire but have problem 500 error. Photo variable and $photo->temporaryUrl() is empty always.

Error 500 Post http://example.test/livewire/upload-file?...

use WithFileUploads;

#[Validate('image|max:1024')]
public $photo;

public function save()
{
    $this->photo->store(path: 'photos');
}
public function render()
{
    return view('livewire.upload');
}

<form wire:submit="save">
  @if($photo)
    <img src="{{ $photo->temporaryUrl() }}">
  @endif
  <input id="photo" class="sr-only" type="file" wire:model="photo">
  <label for="photo">Choose Photo</label>
  <button type="submit">Save photo</button>
</form>