SSRS error after execute report from CRM or Visual Studio

Hi all,

I have 3 Datasets and i can execute their queries on SQLServer MS normally.

I'm facing the error below while executing report from Visual Studio or directly on CRM. 

An error has occurred during report processing. (rsProcessingAborted)

Query execution failed for dataset 'Notif'. (rsErrorExecutingCommand)

System.Data.SqlClient.SqlException: A severe error occurred on the current command. The results, if any, should be discarded.
A severe error occurred on the current command. The results, if any, should be discarded.

A severe error occurred on the current command. The results, if any, should be discarded.
A severe error occurred on the current command. The results, if any, should be discarded.