It may be a certain module or plugin resulting in the error. I would propose re-installing the Prestashop core files should you haven’t already. Do not forget to take care of errors gracefully when Functioning with the PrestaShop API. Make sure to check the status code of the response and https://addons.prestashop.com/de/seo-suchmaschinenranking-optimization/31857-automatische-google-rich-snippets-json-ld-opengraph-seo.html