hi, what is the file id in your account? File ID 6852139?
That is a version of a product. I think you misconfigured this product as a collection, which is basically not needed in this case.
Delete this product and use the main file you have uploaded to set a price....
The idea of this is to create collection of other files, so you do not need to upload the single parts again - yet in your case that is not the intention, if I get you right...
You have 1 single main product and a free preview for it. But you have created a collection of 2 different products in this case...
ralf