Some users are getting a no such column on entity Contact or Lead error when running S4S List Builder. This might look like, "No such column 'Description' on entity 'Contact'".
The error occurs when importing campaign members and is due to missing fields in the Salesforce Contact or Lead record that the List Builder is asking for. Some Orgs do not have these fields and they are not required by the List Builder.
A new release (version 1.1.17094.4) has been published to overcome the issue by not trying to read fields not required by the List Builder. Installing the new package will overwrite the old package.