The phrase "kinds of mistakes" is an idiomatic expression that refers to a variety or range of errors, blunders, faults, or oversights. Full definition
That's why you need to keep in your mind, what kind of mistakes other job seekers did and why they were instantly rejected by a hiring managers. (resume2018.net)
In order to avoid making this same kind of mistake in your eLearning recruitment practices, it's time to ask if your methods make room for enough diversity in hiring. (elearningindustry.com)
I just repeat the same kinds of mistakes over and over. (newscientist.com)