Re-blogging as it says a lot of what I know about chronic pain and some things I didn’t know. Most of all it says it in a clearer and more accessible way than I could manage.
Please check that this widget Facebook Reviews has a connected Facebook.
Facebook API Error: {"error":{"message":"Error validating access token: The user has not authorized application 1501100486852897.","type":"OAuthException","code":190,"error_subcode":458,"fbtrace_id":"AO6faEdbzg51eCWP4lAgmVV"}} Reconnecting to Facebook may fix the issue.