Duplicate Indexed Pages

I was exploring my Google Search Console and noticed that there are literally thousands of duplicate pages indexed because of this plugin. It seems that when you change the month on the embedded calendar, every single query string gets indexed by Google as a separate page. This can cause serious SEO problems.

I’m working on a solution myself but this seems like it’s something that the plugin should address.

The page I need help with: [log in to see the link]