Unable to connect to get data from share point folder

[desairajvijay]

I have been using Power BI for reporting. All the data sources are on the sharepoint site. I have linked sharepoint folder as a data source and I have been using combine binaries to combine my CSVs. However, I am suddenly getting this error while refreshing and getting new data from source. 

I am not able to load sharepoint folder anymore.

 Details: "Web.Contents failed to get contents from 'https://xxxxxxxxxxxxxx/sites/isteam/_api/web/lists/getbyid('76376090-3dae-438c-8247-5294888a5f3b')/RenderListDataAsStream' (500): Internal Server Error