Line 37 360yield.com is not the canonical exchange domain. Use improvedigital.com instead.
Line 78 pulsepoint.com is not the canonical exchange domain. Use contextweb.com instead.
Line 81 Ad system domain seedtag.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