Google Search Console it says I have 5 errors

They are still showing up in the sitemaps generated by All in One SEO plugin. You need to do something so the plugin does not list them any more. With some plugins you can exclude posts in a certain category. Of course attachments don’t normally have categories. You could exclude all attachments, but that would be a poor choice if others are important for your site. If you are not using those items, your best option is to locate the related media items and delete them.

@bcworkz AIOSEOP dev here. I can confirm that @bcworkz is right. For now, you need delete media items that are unattached. We’ll try to improve this behaviour in the future.