We received your query on Kogence.
What problems are you facing with upload?
1/ Make sure you are logged-in.Try logging-out and logging back in.
2/ Make sure you own the model. You can only upload files in your own models or models shared with you. If you are using a public model from Model Library then make sure you first copy the model.
Let us know if you are still having issues. Posting your question in Forum will get you quicker help.