Hello,

Thank you very much for choosing our theme and for contacting us.

Please make the full backup of your site and check the issue on the Storefront theme to detect if our theme causes the problem. Storefront is a free theme developed by WooСommerce.

If you see the same, please try to save Permalinks in the Dashboard > Settings > General. If you have configured custom URLs there, try to switch to the default settings.

Best Regards