It could be a certain module or plugin producing the error. I might advise re-installing the Prestashop core files for those who haven’t already. I am loving the flexibleness from the PrestaShop API. It's so multipurpose and causes it to be straightforward to combine with other platforms. Ponder tips on https://addons.prestashop.com/de/seo-suchmaschinenranking-optimization/31857-automatische-google-rich-snippets-json-ld-opengraph-seo.html