Provide temporary wp-admin and FTP access, so we can take a closer look.
Also, contact the author of the plugin:
What email ids you have inside your plugin. I need to know them to add them to filter which allows me to built own emails’ design using built-in WooCommerce Email builder from XStore theme.
Example of what I need to know: https://prnt.sc/mhrWU0Y7YlnC -> new_order
