I am using existing code and trying to upgrade a module. But during the upgrade, I am getting the following error. Can someone please help me how to resolve the issue as I am new and don't know where to look for such an issue.

File "/home/Project/odoo/odoo/odoo/models.py", line 1112, in _validate_fields

    raise ValidationError("%s\n\n%s" % (_("Error while validating constraint"), tools.ustr(e)))

odoo.tools.convert.ParseError: "Error while validating constraint

Element '<xpath expr="//group[@name='extra_images']">' cannot be located in parent view

Error context:

View `label_product.template.form.view`

[view_id: 2035, xml_id: emipro_theme_base.label_product_template_form_inherit, model: product.template, parent_id: 543]

None" while parsing /home/Project/odoo/odoo/addons/emipro_theme_base/views/product_label_view.xml:5, near

<record id="label_product_template_form_inherit" model="ir.ui.view">

            <field name="name">label_product.template.form.view</field>

            <field name="model">product.template</field>

            <field name="inherit_id" ref="product.product_template_form_view"/>

            <field name="arch" type="xml"> 

            <xpath expr="//group[@name='extra_images']" position="before">

<group name="label" string="Sale Label">

<field name="label_ept_id" title="Label"/>

<field name="product_icon" title="Product Icon" widget="image"/>

</group>

</xpath>

        </field>

        </record>