Fix Bug with WordPress / Sensei Plugin Not Showing Certificates

I have a WordPress site with many plugins, one of those plugins is Sensei, a learning management system for WordPress. This plugin is supposed to generate a certificate and mark a course as completed when a user passes all the course tests. Currently the certificates are not showing once the user completes a course, and it doesn't mark the course as completed. I think there may be a plugin conflict, but I can't test this on the live production site. I need someone to take care of this without interrupting the live production site.