Hello,
We hope this message finds you well. We kindly request that you download the XSore Core plugin from our website by visiting the following link: https://www.8theme.com/downloads/ . Once downloaded, please proceed to install it on your site by navigating to Dashboard > Plugins.
We believe that the issue you are experiencing is not related to the license. To assist you further, we would appreciate it if you could record a video of the actions you are taking. This will enable us to review the process and provide more targeted assistance.
Best Regards,
The 8Theme Team