swift ui preview crashing

my preview was working fine until now, here is the error diagnostic, can someone please let me know a fix for this.

CrashError: Rehan crashed

Rehan crashed. Check ~/Library/Logs/DiagnosticReports for crash logs from your application.

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| RemoteHumanReadableError: Failed to update preview.
|  
| The preview process appears to have crashed.
|  
| Error encountered when sending 'previewInstances' message to agent.
|  
| ==================================
|  
| | RemoteHumanReadableError: The operation couldn’t be completed. (BSServiceConnectionErrorDomain error 3.)
| |  
| | BSServiceConnectionErrorDomain (3):
| | ==BSErrorCodeDescription: OperationFailed