If you have not linked your project with any BIM model, you will be brought to this page when you go to LPD + BIM module. Click on Link Model to upload your BIM model to the project.
Once you click Load Model, you will see your BIM360 account its files. Select the desired BIM model from your BIM360 files and click Load Model to upload to LPD + BIM.
After a few seconds of loading, your BIM model will be successfully linked with your Lean PlanDo project.