We have a dashboard that was working fine with scheduled data refreshes for few weeks but it now started failing when refreshing from PowerBI service. There is no issue refreshing from PowerBI desktop and the error is only when trying to refresh from PowerBI service.
The data source is excel online in a Sharepoint. There is no calculated column involved and it is a very straightforward pointing to excel online to create some visualization in PowerBI.
The size of excel file is ~45 KB and pbix file is ~480 KB.
Any suggestions what might be the root cause for this error?
Thanks