This is a second level subdomain so isn’t covered by the Cloudflare Universal SSL certificate (which will only cover everybodycan.co.il and *.everybodycan.co.il).
You will need to use Advanced Certificate Manager to support www.eitan.everybodycan.co.il…
The advanced certificate should be purchased for that hostname and *. eitan.everybodycan.co.il The issue was not the certificate type it is what hosts the certificate covers.