Hello, @aloulou,
We recommend that you disable all third-party plugins (including cache plugins) that do not come bundled with XStore (https://xstore.helpscoutdocs.com/article/36-included-plugins), clear the cache of your browser, and then check if the issue persists. It is possible that one of the additional plugins is causing the problem.
If the issue still persists, please keep all third-party plugins deactivated on your site and grant us permission to debug your site, which includes deactivating all third-party plugins and on-site customizations, so that we can investigate and provide assistance.
Please note that you should take a complete backup of your site before proceeding.
Thank you for your cooperation.
Best Regards,
8Theme’s Team