Schema Error

I have some schema errors on my wordpress website. The errors are on several inner pages but not the index page. I have the same errors on some of my other websites. This could be theme related as they all use the same theme. I need to know how the schema markup got there as I did not have it added (maybe a plugin?) and once it is determined the cause then I will need this repaired. I will also need to know how the repair waqs done so I can implement the repairs on my other websites and any future websites. This is not a large project for someone with wordpress knowledge. Please ask questions before bidding. that are being contributed from a wordpress plugin I am using. I need someone to review the errors and diagnose exactly where they are coming from... Maybe a plugin is set up wrong? This plugin is being used on several sites and they all have the same error so I need someone to explain how to fix this so I can do it on my other websites as well. The plugin is Project Supremacy and the schema errors are all AMP related. Missing author, name, etc... This is not a large project, should only take a few minutes for someone with the right skills. Please ask questions before bidding.