Hi Adel,
Unfortunately, solely from this information provided, we are not able to pint point the problem.
May I ask if you’ve recently made any changes in your data load setup or in your data source itself? I understood that this was working just fine until recently and also the re-run of the data-load didn’t help is that correct?
Can you please invite our support user
support+logicnesia@gooddata.com into the workspace where your ETL brick reside
with admin rights?