This message is received when Citrix can't communicate with SMCC's Single-Sign-On process, usually because your login has timed out on a different browser tab accessing the SMCC portal. There are a number of ways to resolve or work around it: Try any or all of the following:
1) Use the Citrix Workspace App from the windows start menu instead of the browser.
2) Close your browser and re-open.
3) Clear your browser cache (varies by browser).
4) Open a private or incognito browser window.
5) Reboot your computer.
If none of these resolve the issue or if you need assistance with a particular option, feel free to reach out to SMCC IT HelpDesk..