Error: Access Token for highlinequartet is not valid or has expired. Feed will not update.

There's an issue with the Instagram Access Token that you are using. Please obtain a new Access Token on the plugin's Settings page.
If you continue to have an issue with your Access Token then please see this FAQ for more information.

Error: No posts found.

Make sure this account has posts available on instagram.com.

Error: admin-ajax.php test was not successful. Some features may not be available.

Please visit this page to troubleshoot.