When activating your Vcard module, it is necessary to activate the main "Slug" of your company.
The "slug" is a part of the link that allows you to easily identify your URL. It is divided into three parts: the base link, the company section (which we see here), and the user section.
To activate the company section, go to the settings tab then the Vcard tab. Fill in the "Slug" field with your company name as shown in the example.