Thanks for the question and using MS Q&A platform.
This would be an intermittent issue. I would suggest you re-try again and check if that works.
When you first navigate to and open the Microsoft Purview portal, a welcome dialog appears that provides a brief overview of the new portal experience. After agreeing to the terms and privacy conditions, select Get started to follow teaching bubbles that highlight key areas of the new portal experience.
If you would prefer to use one of the classic portals, select Go to classic portal to choose to continue with either the Microsoft Purview compliance portal or the Microsoft Purview governance portal. If you don't accept the terms, you have the option to use one of the classic portal experiences.
In case if you are facing same issue. You may try the following steps and let us know.
- Clear “Cookies and Cached data” of your browser.
- Private Mode (New InPrivate Window).
- Try in different browser.
Hope this helps. Do let us know if you any further queries.
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