Helm pushing failed

I’ve 2 ci jobs that build dockerfile then create and push the helm chart, these 2 jobs works fine, but when I go in package registry my helm release is in error with the message Invalid Package: failed metadata extraction. Could you please help me find to find the cause.
Bellow my chart.yaml :
apiVersion: v2
name: toto
version: 0.0.1-dev
appVersion: 0.0.1-dev
icon: https://media.gettyimages.com/id/86292411/fr/photo/rock-star-of-the-barnyard.jpg?s=1024x1024&w=gi&k=20&c=uuw_3nhqtaLuH-9hWe_sK3UIWWv3oAXjPfjMJ2njVRo=
description: New Recruiter interface