Cannot upload csv file to RM cloud

I have tried to upload different data sets to the Rapid Miner (RM) cloud however am getting the same result " cannot store object". I have 50.9mb available space on the cloud and my recent file is just 1mb. I have no errors in the process in adding the data set to the cloud until the final stages. Can someone point me into the right direction to help me resolve why my dataset is being rejected? I need to show three different data mining techniques for a university assignment I am working on.

Please find the dataset attached which I am trying to work on

Many Thanks In Advance

Bianca