It could be a certain module or plugin resulting in the error. I'd personally counsel re-installing the Prestashop Main files in case you haven’t already. I am loving the flexibleness from the PrestaShop API. It's so multipurpose and causes it to be straightforward to integrate with other platforms. Should you https://addons.prestashop.com/en/seo-natural-search-engine-optimization/31857-automatic-google-rich-snippets-json-ld-open-graph-seo.html