An Exception Occured when refershing the query

Hello All,

Below exception occured for the following two scenarios.

• It occured when i tried to refresh the query.
• Other Case, exception occured when i enter the user prompts , it was about to refresh and got the same error messageNeed to know, when this type of error message occurs generally " An exception occured in one of the data source " and " Nested Exception".Need your inputs.

Thanks in advance.

John

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