Error in UDT


In my Solarwinds installation, while trying to access Device Inventory or User Inventory, not able to see any details in those pages and also getting the below error in the search box. I am using UDT 2020.2.

"message": "An error has occurred.",
"exceptionMessage": "RunQuery failed, check fault information.\nExecution Timeout Expired. The timeout period elapsed prior to completion of the operation or the server is not responding.",

Any one faced similar issue in UDT?