Item Category not defined with Magento 2 plugin

[CiscoJPL]

Hi everyone,
I installed successfully the plugin and i have access to my ecommerce data in magento EXEPT for item cateogry

When i look to my data layer, everything seem ok :

'event': 'product_view', 'ecommerce': { 'product': { 'sku': sku, 'name': name, 'categories':categoryName, 'price': price, 'cagnotte': cagnotte, 'co2e': co2e, 'brand': brand, 'vendor': vendor

I want to say that i have access to item ID in my matomo reports, but the category still undefined.

Anyone having this issues ?