Thank you so much for purchasing our theme and contacting our support center.
Please go to WooCommerce > Status > Logs > check what error are in log file with the latest date, it may point to right direction of what should be fixed.
Also, read this article – https://elementor.com/help/debugging-safe-mode/
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.