An unexpected error has occurred; try refreshing your project again. If the problem persists, please submit this error ID to Adobe Customer Care for further diagnosis: 23f8e5b2-3cc0-4388-89ce-2f2795867293
There's an ongoing issue with Analysis Workspace and Calculated Metrics. The team is actively looking into it. You can keep an eye on status.adobe.com for more details (#2020052705).
Also, you may want to open a ticket with Client Care.