Our clients submit requests to connect forms through your php sdk. We get a response with the “An unknown error has occurred” error, “OAuthException” with high frequency. Attached trace id : “fbtrace_id”: “AVVtUcoHj97gzuaYV8MJO08” $page = new \FacebookAds\Object\Page($pageId); $page = $page->getLeadGenForms($fields,$params); $page->getLastResponse()->getContent();