Participation certificate

Hi! I participated in the virtual Robocup last year, and I would like to know if there is any way I could talk to someone from the organization or if anyone knows how to help me.
I lost my certificate, and I am having trouble getting it back. The site doesn’t seem to be available anymore, so I can’t get it. The only one I have is my team certificate, but not the one with my name on it.
I needed the certificate for college admissions, so I hope someone can help me.

I sent you a private message. Please check.