There is a 200MB limit for eCommerce modules across all Sphere accounts.

Alternative Solutions:
  1. Delete older files to free up space for new content
  2. Upload files to your CMS File Library
    • Files can be uploaded to a CMS site and the URL can be added to the eCommerce module.
    • Note: It would be best to create/use a separate CMS site to avoid confusion and to help ensure that the URLs for the files don't get linked to any CMS pages.