Thank you for reaching out!  

This issue may be related to hosting configuration settings such as: 

1. The `allow_open_urls` directive being disabled
2. ModSecurity being enabled
3. or The theme license not being correctly linked to the website.

Could you please double-check these configurations? Once verified, try importing again to see if the issue is resolved.  

If the issue persists, to assist you further, could you please open a private ticket and provide the following details:  

1. The site login credentials
2. The demo name you wish to import
3. The cPanel login credentials for the hosting

With these details, we can investigate the issue and help resolve it.  

Thank you very much!

Regards,