error try to add attachment relation through model

Describe the bug
I try to create a sample for using attachments. I use all steps from https://orchid.software/en/docs/attachments/ and https://orchid.software/en/docs/quickstart-files/. If i a the following to the Model "post", i can't add a post anymore. The page only shows a white page. Create and edit does not work anymore.

public function hero()
{
     return $this->hasOne(Attachment::class, 'id', 'hero')->withDefault();
}		

To Reproduce
Create all files described at https://orchid.software/en/docs/quickstart-crud/. Add attachment support. https://orchid.software/en/docs/quickstart-files/. After that add relation to model described here https://orchid.software/en/docs/attachments/#remove.

After adding the relation the create/edit page could not be loaded anymore. Without the releation the page is ok.

I don't see the error. Any tipps for me?

Desktop (please complete the following information):

• OS: Windows 10
• Browser Firefox
• Version 108.01

Server (please complete the following information):

• Plattform Version: 13.9.1
• Laravel Version: 9.45.1
• PHP Version: 8.0.26
• Database: [MySql
• Database Version: 15.1