OpenEduCat Library

Dear All,

Thanks for the great job here. While attempting to import the Module(s), I get stacked with the below message (hereafter a sample for Library but the same goes for full module or other individuals). 

Grateful if you can please help me. Many thanks in advance.

My environment is: NAS Synology, installation of Odoo Community with the objective to import and test your solution before purchasing the full package.

Erreur lors de l'importation du module 'openeducat_library'.

while parsing /tmp/tmp59q4snho/openeducat_library/security/op_security.xml:4, somewhere inside

<record id="group_op_library" model="res.groups">

            <field name="name">Library</field>

            <field name="category_id" ref="openeducat_core.module_category_all_other_education"/>

            <field name="implied_ids" eval="[(4, ref('base.group_user')),(4, ref('account.group_account_invoice'))]"/>

            <field name="users" eval="[(4, ref('base.user_admin'))]"/>

        </record>

/

Best