Because you have so many errors, what you should do is reset the validation state entirely. The best way to do so is via WP-CLI:
wp amp validation reset
This will remove all the validation errors and all validated URLs so you can start with a clean slate.
If you can’t use WP-CLI, then what you can do is go to the Validated URLs screen, select all URLs, and in the Bulk Actions select “Forget”. Keep doing this bulk action until you’ve forgotten/trashed all the Validated URLs. You can then go to the Error Index screen and click the “Clear Empty” button. That will remove all the validation errors which have no associated Validated URL, which at this point will be none. Nevertheless, 30K is a large number and deleting all of them may cause the request to timeout. Therefore, using WP-CLI is preferred.
After you have reset the validation state, then in the support forum here you can find other users who have used Newspaper and how it should be configured. As I recall they have a mobile theme plugin that integrates with the AMP plugin. I believe that @milindmore22 or @jamesosborne can point you to more information how best to configure Newspaper for AMP.