If the Project is closed and you were unable to upload your submission, you can no longer submit it. Reach out to the purchasing organization directly, as it is up to the purchasing organization to decide whether you can submit your proposal after the closing date.
For more information on how to contact the Project Owner, refer to How do I contact the Project Owner?
Note
If the Project Owner requires any further information about your submission, have them reach out directly to Euna Procurement Support.