Lattice Diamond Port 'direction' is unconnected
Check the "File List" tab in the left window. You will find a list of all files included/used for your project. Look for the pin_assignments.lpf file (which is listed under the constraint files). There you can open the file and modify it manually. Alternatively you can use the spreedview tool you already opened to modify it. You have to assign the design ios to the correct PADs. "What" is the correct connections depends on the used board. You mention "LFE5UM-85F-8BG756I" as your chip which indicates that you are mostlikely not using the "default" ECP5 eval board (LFE5UM-85F-PB-EVN). But there is a file similar to http://www.latticesemi.com/view_document?document_id=52479  (corresponding doc for the mentioned eval board) for every lattice semi eval board which provides the needed information AFAIK.