Update res_partner_view.xml

The field vat is in base_vat.view_partner_form and not base.view_partner_form

partner_create_by_vat/views/res_partner_view.xml

@@ -4,7 +4,7 @@
     <record id="view_partner_create_by_vat" model="ir.ui.view">
         <field name="name">res.partner.create.by.vat</field>
         <field name="model">res.partner</field>
-        <field name="inherit_id" ref="base.view_partner_form"/>
+        <field name="inherit_id" ref="base_vat.view_partner_form"/>
         <field name="arch" type="xml">
             <field name="vat" position="after">
                 <label for="vat_subjected"/>