Hi Chris,
Thank you for reaching us…
AMP plugin is validating all of our plugin main script which is hand written for our responsive recent post slider plugin. Without these CSS and JS files, our plugin will stop working for your website. Like Public and Slick script file invalid external script file, but these are main script files for the plugin.
Not only us, there are lots of well known plugin adding external and custom JavaScript to manage and create plugin features and functionality like ex. WooCommerce. This is not our plugin issue so kindly contact with AMP plugin support team and ask about this issue.
If you want to remove the warning, you can go to the warning caused area. Select the pages that are triggering the warning and mark to forget it.
Please check and let me know if anything.
Thank You!!
