Independent technical reviews, which you may get in Zerocracy, won't help you find bugs in your software, this is what testers are for. They will help you understand how far your code base from the industry standards applicable to your tech stack. Most teams tend to do things in their own special way, which is a huge threat to maintainability. Don't wait until it's too late, start now.

The video is here: https://youtu.be/jzMZaC54nbc