Birth Certificate Upload Rejection

Hi All,

I received an error when I uploaded my birth certificate (original and translated + apostilled) on the forum.
"A document: Justificatif d'état civil is non−compliant for the following reason:
un acte de naissance plurilingue de meilleur qualité graphique. L'acte que vous avez fourni est illisible . Je vous invite à vous rapprocher de votre ambassade en France."

What does this mean, what do I have to re-upload in better quality? The English version of my birth certificate or the French translated one? I am not clear.

Thanks.