Hello,
Thank you very much for choosing our theme and for contacting us.
Please make sure the site parameters meet the required and described here: https://xtemos.com/docs/woodmart/requirements-wordpress-set/
In addition, please check the current value for PHP max input var
s in your Dashboard -> WooCommerce -> System status. Usually, this parameter is not allowed to be changed on shared hostings so you will need to contact your server providers and ask to increase this limit. Recommended value for this is 5000
Best Regards