If this issue occurs both on and off of your organization network, you may have more than one Blackbaud ID account associated with your username. This can occur if changes were made to your profile in your Identity Provider. See 
No Access to Blackbaud.com and Applications after changing profile in Identity Provider for more information.

If the issue only occurs on your network and the Help Panel icon  is missing in the upper-right corner of your profile, see Why can't we load the Help Panel icon from within our network?