Forget the advanced versions and single leg versions. It's good your back is hurting. Your body is telling you something, probably that your not doing the exercise correctly, which is the most logical explanation for your back pain.
Your thought process shouldn't be ok then let me do a different exercise but instead, if I'm not doing this exercise correctly, whats the chance I am going to do other exercises that work in essentially the same way correctly.
The answer is you probably wont.
Glute activation buddy. Don't think I'm fine it's the exercise that is the problem. Trust me. It's you.