Thanks for the credentials.
You are using a lot of plugins and some changes were done in the child theme. Please check the next:
– 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 the cache of the browser, and check then. Maybe one of the additional plugins is the reason for the problem.
– check if the problem isn’t caused by your changes in the Child theme.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.