Validation issues

Hi all, first all thanks a lot to the makers for create and work this plugin.

I have active the last version (0.9.37.5)

When I select the option for active AMP on pages and Select Page as Front Page (different page) the validator shows a lot of validation issues (please see https://validator.ampproject.org/#url=https%3A%2F%2Ffototrekking.com%2Famp%2F )

Thanks a lot