Assignment 1 problem

when I submitted assignment 1 of level 3 the instructor comment me back is like this what exactly it means ???
I’m attaching the Screenshot


There are two chances

  1. You refreshed the browser after submitting the assignment or
  2. The ACME site you processed data for all the 16 objects are wrong (Client securty hash code you posted from sha1 to acme is wrong)

You security hash code did not match the one that they have.
Go, try one manually and see if you have the same results as generated with robot