In the authentication page, I receive “An error occurred. Contact the administrator for more information” sign-in error, how can I fix it?

  1- Refresh your metadata. Run sync-ADFSTkAggregates.ps1 file in  C:\ADFSToolkit\1.0.0.0.  

  2- Check the ADFS logs. Open tools –> Event Viewer –> Application and services logs–> ADFS–> Admin