Hello, Teralt2003,
We’ve checked the Cart page and it works fine.
From the Dashboard on your site, we can’t check WooCommerce > Status > Logs, so FTP access is needed still to enable debug mode and to check files.
We asked you about FTP access at the same time with the staging site – https://gyazo.com/974423709da979663c901f725eb55942 If you really need assistance please reply to us with access.
Kind Regards,
8theme team