Not Enough Memory Error

I've been getting this error for a while now after trying to refresh "failed to save modifications to the server. error returned: there's not enough memory to complete this operation. please try again later when there may be more memory available"

I have tried removing the calculated measures as suggested before and it has not worked. Also, i tried removing the visualization and then refreshing and that did not work either. However, if i load the data into a new file the problem seems to disappear for a coupe of days just to re appear again later. If anyone has any idea about this issue help will be much appreciated. Regards.