Problems Refreshing on Service

Hi All,

Im having the following problem. Im getting a refresh error on the service while on the desktop version its working well. I have two main data sources. 

- Analysis services cube

- Sharpoint Folder

Both of these are imported into thier respective tables and then appeneded together to create a master tabel (33_Master). below you can see the error codes that the service is though out when refreshed online. 

I tried deleting the appended master table (33_Master) and published to the service. And had no issues with the refresh. Sources were refreshing fine on the service. 

What could be causing this problem ? 

Thanks for any help,

regards.