Hi Mustafa,
not sure whether this is still open...
It might be that the report is executed asynchronously if triggered from a job.
Please check for jobs in the (ERP) backend system.
Please check the job log in detail (errors are reported with message type success).
Typical errors are caused by incorrect RFC link from ERP to GRC (either invalid source connector in GRC connection config, missing RFC destination in ERP system or user/authorization issue).
Regards
Thomas