DataSource.Error: Web.Contents failed to get contents from '(guid'cf7b7819-82ba-4890-9b0d-fbb974514d7b')/RenderListDataAsStream' (500): Internal Server Error Details: DataSourceKind=SharePoint DataSourcePath= Url=(guid'cf7b7819-82ba-4890-9b0d-fbb974514d7b')/RenderListDataAsStream

can anyone advise why I'm receiving this error please? IT can't help !

I'm not sure what's wrong with it. I tried running it via File explorer; downloading from SP; receiving site collection rights