It may be a certain module or plugin creating the error. I'd personally advise re-installing the Prestashop core files when you haven’t already. three. It'll redirect to the Web Services page having the listing of available Web Services and the configuration form to configure the company. Analysts predict that the https://addons.prestashop.com/en/seo-natural-search-engine-optimization/31857-automatic-google-rich-snippets-json-ld-open-graph-seo.html