Problem creating shipments in trial

When I try to create a shipment on an order in my trial version of CS-Cart, I get the following message:



[color=#9C3535][font=Tahoma, Arial, Verdana,]

Error[/font][/color][color=#9C3535][font=Tahoma, Arial, Verdana,]

Products for shipment were not selected[/font][/color]

See here