If SiteJet Builder is asking for an API key after reinstallation, it means that the connection between the builder and its server or service is not properly established. To resolve this, follow these steps:

1. Verify API Key:

   • Double-check that you have the correct API key for SiteJet Builder. If you're unsure, you might need to generate a new one through your SiteJet Builder account.

2. Check SiteJet Builder Account:

   • Log in to your SiteJet Builder account and verify if there are any settings or configurations related to API keys. Make sure that the key is valid and active.

3. Reconnect SiteJet Builder:

   • In the Plesk interface, go to the SiteJet Builder extension. Look for an option to reconnect or configure the builder. Enter the API key provided by SiteJet.

4. Check for Network Issues:

   • Ensure that your server has stable internet connectivity. Network issues might be preventing SiteJet Builder from connecting to its servers.

5. Firewall and Security Settings:

   • Verify that there are no firewall rules or security settings that might be blocking outgoing connections from your server to SiteJet's servers.

6. Review SiteJet Documentation or Support:

   • Refer to SiteJet's official documentation or reach out to their support team for specific guidance on API key integration.

7. Clear Cache and Cookies:

   • Sometimes, cached data can cause issues with authentication. Clear your browser's cache and cookies, and then try reconnecting SiteJet Builder.

8. Check for Updates:

   • Ensure that both Plesk and SiteJet Builder are updated to their latest versions. An outdated extension might have compatibility issues.

9. Reinstall SiteJet Builder Extension:

   • If the issue persists, you might consider reinstalling the SiteJet Builder extension in Plesk. Make sure to remove the existing extension first, and then reinstall it.

10. Contact SiteJet Support:

    • If none of the above steps resolve the issue, it's recommended to reach out to SiteJet's support team for further assistance. They will be able to provide specific guidance based on your setup.

Remember to always keep a backup of your website and server configurations before making significant changes or reinstalling extensions. This ensures that you can revert to a stable state if needed.