Line 8 Ad system domain oath.com is not a known exchange domain. Ensure the spelling is correct, check the partner documentation, or have the partner update the IAB Tech Lab normalization mappings: https://wiki.iabtechlab.com/index.php?title=Ads.txt_Normalization_Mappings
Line 9 brightroll.com is not the canonical exchange domain. Use btrll.com instead.
Line 12 rubicon.com is not the canonical exchange domain. Use rubiconproject.com instead.
Line 16 sfx.freewheel.tv is not the canonical exchange domain. Use freewheel.tv instead.
Line 18 publishers.teads.tv is not the canonical exchange domain. Use teads.tv instead.
Line 19 publishers.teads.tv is not the canonical exchange domain. Use teads.tv instead.
Line 35 Ad system domain featureforward.com is not a known exchange domain. Ensure the spelling is correct, check the partner documentation, or have the partner update the IAB Tech Lab normalization mappings: https://wiki.iabtechlab.com/index.php?title=Ads.txt_Normalization_Mappings