Plugin installation failed

Hi I just bought your plugin. I tried to install it: - Go to WP dashboard > Plugins > add new - upload the ZIP file and click install - Get an error message: <h1>Installing plugin from uploaded file: aiomatic-automatic-ai-content-writer-package.zip</h1> Unpacking the package… Installing the plugin… The package could not be installed. No valid plugins were found. Plugin installation failed. Could you help please? Thanks Fabrice