When removed in Internationalization-> Geography-> Countries-> Russia.
This error is included in debug mode [PrestaShopException]
The Address-> city property is empty. at line 944 in file classes / ObjectModel.php
$message = $this->validateField($field, $this->$field); 942. if ($message !== true) { 943. if ($die) { 944. throw new PrestaShopException($message); 945. } 946. return $error_return ? $message : false; 947. } 948. } And without debugging 500 Internal server error when I return the city or last name everything works fine