Hello, Stelio,
Thank you for contacting us and for using XStore.
This text is already translated – https://prnt.sc/ZMSERJsim89Q , so you can just edit the translation of it in the same way you translated it.
Please read about Account endpoints here – https://woocommerce.com/document/woocommerce-endpoints-2-1/#section-2
We would recommend you contact the support of WooCommerce plugin to get further assistance.
Kind Regards,
8theme team