Issue

Facebook connector and connection tests are failing receiving the following error message: Failed with: java.lang.RuntimeException: Access Token is expired, Please get a new access token { error: {message:'Error validating access token: The user is enrolled in a blocking, logged-in checkpoint', type:'OAuthException', code:190, error_subcode:490, ...}

Environment

Connector - Facebook Ad Account 

Resolution

1. Delete the browser history and cookies for your browser. 
2. Log in to https://www.facebook.com or https://m.facebook.com from that browser.
   Note: If the issue is related to pages or ads, you may need to log in to the Business Manager instead.
3. This should load a new page with a security checkpoint that lists the actions you need to take to address the root cause that blocked the account in the first place (verifying your ID, removing inappropriate content, etc.).
4. If the checkpoint does not appear or renders as blank (a common problem reported), see this guide on the Facebook forums for a possible workaround. 

Cause

This error occurs your Facebook user account has failed a security checkpoint, check out this reference article for more details.