how to stop repeated content in view
Did you check How do I remove duplicates when using the random sort? before?

If it does not help you check views_distinct module


  Relationships or other joins in Views often create "duplicate"
  results. For example, a node with a field that has multiple values may
  show up in the View once per value in the multi-value field. It's
  frustrating, and the "DISTINCT" SQL query option in the Views UI does
  not actually solve the problem because the result row is technically
  distinct. This module aims to give a simple GUI method to remove or
  aggregate these "duplicate" rows.