Hello,
As we can see, you updated Core plugin, but not XStore theme. You need to update the theme – https://xstore.helpscoutdocs.com/article/63-theme-update , then clear cache and check.
If this doesn’t help, try to disable all the third-party plugins (including cache plugins), that do not come bundled with XStore https://xstore.helpscoutdocs.com/article/36-included-plugins , clear cache of browser, and check then. Maybe one of the additional plugins is a reason for the problem.
Regards