Error: Error validating access token: The session has been invalidated because the user changed their password or Facebook has changed the session for security reasons. Type: OAuthException Subcode: 460 Solution:See here for how to solve this error
Instagram
This error message is only visible to WordPress admins
Error: API requests are being delayed for this account. New posts will not be retrieved.
There may be an issue with the Instagram Access Token that you are using. Your server might also be unable to connect to Instagram at this time.
Error: No posts found.
Make sure this account has posts available on instagram.com.