This could mean a couple things. First, it could mean that your school was actually a Federal Day School, not an IRS. Students who attended a Federal Indian Day School may be eligible for compensation through the Federal Indian Day School Class Action Settlement. For more information, visit https://indiandayschools.com/en/.
Second, it could mean that your school was not an IRS that was set up and funded by the Canadian Government. This lawsuit is against Canada only, and only covers institutions that were set up by the Federal Government under the Indian Act.