It may be a particular module or plugin causing the error. I'd personally advise re-installing the Prestashop core files in the event you haven’t already. d) Authorization: Offer the authorization to obtain the data using the specified key. You may check the precise permission to grant accessibility of the information https://addons.prestashop.com/it/seo-indicizzazione-naturale/31857-google-rich-snippet-automatico-json-ld-open-graph-seo.html