If you're receiving an initial data not loaded error when signing into the software, this could mean that you do not have permission to sign in. Your details haven't been set up yet or you have been moved from F3 to DC2 which will require a new link.
Please try the steps below:
Go to office.com.
Sign in.
Go to Outlook
Wait for it to load, then try to go into Access Legal Case Management again.
If you're still experiencing the same issue then please follow this guide on clearing your browser cache, How to clear browsing cache.
If you're still experiencing issues or you are a new user then please raise a new case online and reference the title of this article.