Playground not working!

Hi  Sab ,

You can set the customErrors mode to off based on the error message to see the actual error to fix it.

Or You can try clicking on File—>Option and Settings—>Options—>Diagnostics—>Enable tracing – >Collect diagnostic information， then you will find the Power BI log files.

Power BI Desktop diagnostics collection - Power BI | Microsoft Learn

This is the related document, you can view this content:

asp.net - error: the details of the application error from being viewed remotely - Stack Overflow

Message "Server Error in "/" Application" - Microsoft Community

Azure Web Sites: Troubleshooting “Server Error in '/' Application” errors - Microsoft Community Hub

Best Regards,

Liu Yang

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