P.S. We tested your product and got 2 errors https://prnt.sc/qo5t7w But once we disabled third-party plugin WP Customer Reviews then errors disappeared http://prntscr.com/qo5x5o
So, we would recommend you to contact plugin author to fix the issue with the structured data validation when their plugin is enabled.
And fix the errors that are not related to our theme http://prntscr.com/qo63qe before reply back with FTP access for update, please.