It could be a specific module or plugin producing the error. I'd personally propose re-installing the Prestashop Main files in case you haven’t already. I'm loving the flexibleness in the PrestaShop API. It is so adaptable and causes it to be easy to combine with other platforms. If you are https://addons.prestashop.com/pl/seo-pozycjonowanie-naturalne/31857-automatyczne-google-rich-snippets-json-ld-opengraph-seo.html