Here goes a compiled list of errors normally checked and solve 90% of issues and that you may debug before opening a ticket.
- Verify that your system is updated and running the minimum requirements.
- Check that your theme is compatible with the current WooCommerce in use on your website.
- Check if your theme has updates.
- Check that all plugins are updated
If all of the above options dont solve your issue then we can start the Debug process before opening a ticket.