The Reason Behind a Mangled Soul

I don't own Undertale. We all know the stories of Error being a Geno, the original sans, or someone else entirely. But what... He wasn't only one type of Sans. What if there was a deeper reason to Error's SOUL being so mangled. This is my original idea. (What if instead of the voices he hears the voices of past selves? ) Slightly inspired by Harrish6