Hello, Despoina,
Thank you for reaching out to us with your concern. We understand that it can be quite perplexing to see your products listed multiple times in your shop when you have only added them once. We would like to assure you that we are here to help resolve this issue.
To address this matter, we kindly suggest that you navigate to the Theme Options, proceed to WooCommerce, then Shop, and finally to Products Design, where you can disable the “Variations As Simple Products (Beta)” feature.
Should you require any further assistance, please do not hesitate to reach out.
Kind Regards,
8theme team