Considering a viable error as a mutation that remains viable for the continuation of life, we can confirm that some people have red hair through viable errors due to mutations in the genetic code

Yes, some people have red hair due to viable errors in the genetic code. These errors are caused by mutations in the MC1R gene, which is responsible for the production of the pigment that gives hair its color. Mutations in this gene can result in a variety of hair colors, including red.