How to display multiple complex validation errors and warnings

To help our users in data entry, we provide them with

  • Warnings (User's data MAY BE correct so we allow them to save)
  • Errors (User's data IS NOT correct; cannot be saved without fixing first.)

How should these errors and warnings be displayed when rolled up?

  1. "Multiple Errors and Warnings" in one banner
  2. "2 Errors" and "2 Warnings" in two banners

Since these fields can get very complex, we want to let our users if they can move on, what is wrong, and how to fix the warnings/errors. enter image description here