You have six contacts that are Near Open, so there is no connection for a Static Structural model to hold the parts together, and in Modal, a part will float away.
The gaps are between 0.12 mm and 0.68 mm. You must move the parts in CAD to have the contacts be closed, even if there is a slight penetration.
Friction will help the solver get started if not all six contacts are closed, you are still using Frictionless.
Was the archive 2 GB after clearing the Mesh? If so, you can share by uploading the archive to your Google email to generate a link that you can put in your reply with the version of ANSYS you are using.